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Posted: 5/12/2022 8:22:16 PM EDT
So guys,
today 5-12-2022 was day 1 that the ROCK 5.7 went on sale. it sold for a low low price of 499.99 on its debut. it was in stock for a little less than an hour. Of those that have been following this, who all was lucky enough to get one besides myself? It's said that the Ruger 5.7 magazines will fit the ROCK, but the ROCK 5.7 maagazines will not fit the Ruger. So if anyone has both, i'd like definite confirmaiton on this if possible. Also any known holsters that fit it off the bat would be a good thing to know. I'm willing to bet some of the Ruger 57 holsters may fit it. but that's just a guess. we will need proof. I'm a big leather holster guy so im going to be keeping my eye open for Leather Holsters for this rig. i cannot wait to get mine in!!! once i do, i cannot wait to shoot her!! The Rock comes with a PSA Padded case, and two magazines.  heres basically what it looks like :   looks to me to be a solid pistol all around to begin with.. I'll definitely wanna put night sights on it, and from what im seeing it looks like standard glock or dagger sights may work. I'll let you know more when i get mine in from shipping. Perhaps we can get @palmettostatearmory to Pin this thread for us too? I'll ask. maybe get lucky. |
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Posted: 2/5/2023 4:38:20 PM EDT
[#1]
Did they ever address the screw length thing? I just picked up my Rock/Holosun combo and had no idea this was an issue. If I’m having to replace screw or mess around with filing/trimming them I don’t know if I would have bought this combo…
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Posted: 2/5/2023 5:17:01 PM EDT
[#2]
Quote HistoryOriginally Posted By AZgunner: Did they ever address the screw length thing? I just picked up my Rock/Holosun combo and had no idea this was an issue. If I'm having to replace screw or mess around with filing/trimming them I don't know if I would have bought this combo |
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WA, USA
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Posted: 2/6/2023 1:27:54 PM EDT
[Last Edit: County804]
[#3]
If you didn’t shorten the screws to be no longer than 10.4mm in length ( they are 12mm originally) they will penetrate the two sides of the plastic striker housing and damage them to the point they cannot be removed without removing the screws and may cause them to fracture. There have not been any reports I am aware of the broken pieces causing any malfunctions but YMMV.
Here are a couple of photos of the damage caused by using the 12mm long screw’s without shortening them from the PSA discussion website:   It’s easy to shorten the screws with only a file. Just screw them into one of the adapter plates that came with the Rock to use as a support and slowly file down the tip measuring the overall length frequently until it is 10.3 to 10.4mm long. When you unscrew it any damage to the threads will be repaired so that it will screw into the slide just fine. |
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WA, USA
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Posted: 2/6/2023 4:07:41 PM EDT
[Last Edit: County804]
[#4]
Originally Posted By AZgunner: Did they ever address the screw length thing? I just picked up my Rock/Holosun combo and had no idea this was an issue. If I’m having to replace screw or mess around with filing/trimming them I don’t know if I would have bought this combo… Apparently, the only thing that PSA has done to address the issue is information on their Facebook page regarding the problem ( from an email I received from PSA Customer Service ). I did find a small head 10mm long M4 torx screw ( in polished stainless ) that would work fine without modification at https://longrobotics.com/product/6mm-d-low-head-10mm-m4-screw-10-pack-t10-torx-drive/ . They are currently out of stock but if you sign up for a notification, they will notify you. May take a month or two. Since most if not all Rock purchasers who buy the Rock/Holosun Combo will not check the PSA Facebook page before or after purchasing a Rock, this is not an acceptable solution. PSA either needs to post this information in the Rock Purchase description itself or even better, purchase an inventory of the Long Robotics 10mm M4 Low Head Torx Screws and include a pair with every Rock/Holosun Combo purchase. |
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Posted: 2/6/2023 5:39:10 PM EDT
[#5]
Quote HistoryOriginally Posted By County804: If you didn’t shorten the screws to be no longer than 10.4mm in length ( they are 12mm originally) they will penetrate the two sides of the plastic striker housing and damage them to the point they cannot be removed without removing the screws and may cause them to fracture. There have not been any reports I am aware of the broken pieces causing any malfunctions but YMMV. Here are a couple of photos of the damage caused by using the 12mm long screw’s without shortening them from the PSA discussion website: https://global.discourse-cdn.com/palmettostatearmory/original/3X/c/d/cd7dd971a85461fdd85753a8680b057f7e210cb4.jpeghttps://global.discourse-cdn.com/palmettostatearmory/original/3X/0/5/05042a163826ffb001d334ab2745cf10dc500822.jpeg It’s easy to shorten the screws with only a file. Just screw them into one of the adapter plates that came with the Rock to use as a support and slowly file down the tip measuring the overall length frequently until it is 10.3 to 10.4mm long. When you unscrew it any damage to the threads will be repaired so that it will screw into the slide just fine. I never pulled my striker block out but good to see that it won't press on anything very important, regardless of length. |
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Posted: 2/6/2023 5:43:04 PM EDT
[Last Edit: RDTCU]
[#6]
Nothing on McMaster?
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WA, USA
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Posted: 2/6/2023 8:52:44 PM EDT
[Last Edit: County804]
[#7]
Nothing even close on McMaster. The only screw that I could find anywhere that will fit without any modification is the one from Long Robotics. It’s polished stainless but you could blacken it if the color bothered you.
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WA, USA
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Posted: 2/9/2023 12:21:16 PM EDT
[Last Edit: County804]
[#8]
Quote HistoryOriginally Posted By RDTCU: I never pulled my striker block out but good to see that it won't press on anything very important, regardless of length. One of the posters on the PSA forum who had the same issue indicated that the long screws actually caused pieces of the striker housing to break off which he discovered when he removed the housing. I don’t know if those pieces could migrate to a critical part of the action during use and cause a malfunction, but better safe than sorry. |
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Posted: 2/26/2023 4:02:12 PM EDT
[#9]
@PalmettoStateArmory
Your inbox is full, can you please IM me? This is regarding the 5.7 Rock screws, you IMed me previously and I need to follow up with you. |
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Posted: 2/27/2023 4:11:08 AM EDT
[#10]
what night sights fit the Rock?
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Posted: 2/27/2023 8:25:08 AM EDT
[#11]
Quote HistoryOriginally Posted By gaspain: what night sights fit the Rock? |
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Posted: 3/9/2023 6:02:34 PM EDT
[#12]
Quote HistoryOriginally Posted By towerofpower94: Got the Rock back out today to see if the handloads would cycle. I did another 23+1 setup and the first round failed to eject with the slide barely moving. The next 2-3rds barely cycled with me having to eject the fired cases. I then had a few that ejected the case 10-15ft to the 4oclock, but apparently failed to reset the striker. Pulling the slide to the rear while keeping the loaded round in the chamber and then tapping the rear to ensure it was fully in battery took care of the dead striker. The last 12-15rd a fired, extracted, and fed without issue to slide lock. Ran out of time to put another 50 AE FMJ through it, but I’m starting to think mine is acting like another guys who posted in the Reloading sub forum. It fails to eject until a few rounds warm it up and then it’s good to go. I’ll do another 50rds each of AE FMJ and handloads and if it’s still giving me fits I’ll plan to send it back to get checked out. Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. |
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Posted: 3/9/2023 6:28:48 PM EDT
[Last Edit: towerofpower94]
[#13]
Quote HistoryOriginally Posted By swreefkeeper: Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. Quote HistoryOriginally Posted By swreefkeeper: Originally Posted By towerofpower94: Got the Rock back out today to see if the handloads would cycle. I did another 23+1 setup and the first round failed to eject with the slide barely moving. The next 2-3rds barely cycled with me having to eject the fired cases. I then had a few that ejected the case 10-15ft to the 4oclock, but apparently failed to reset the striker. Pulling the slide to the rear while keeping the loaded round in the chamber and then tapping the rear to ensure it was fully in battery took care of the dead striker. The last 12-15rd a fired, extracted, and fed without issue to slide lock. Ran out of time to put another 50 AE FMJ through it, but I’m starting to think mine is acting like another guys who posted in the Reloading sub forum. It fails to eject until a few rounds warm it up and then it’s good to go. I’ll do another 50rds each of AE FMJ and handloads and if it’s still giving me fits I’ll plan to send it back to get checked out. Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. Started the return process twice and PSA never completed either. I’ve taken it out once more since with the AE FMJ in a 20rd mag and had no issue. Does your failure to extract happen with a full mag/cold gun and then become less of an issue with a few rounds through the gun? |
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Posted: 3/9/2023 6:41:56 PM EDT
[Last Edit: gaspain]
[#14]
Quote HistoryOriginally Posted By swreefkeeper: Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. Quote HistoryOriginally Posted By swreefkeeper: Originally Posted By towerofpower94: Got the Rock back out today to see if the handloads would cycle. I did another 23+1 setup and the first round failed to eject with the slide barely moving. The next 2-3rds barely cycled with me having to eject the fired cases. I then had a few that ejected the case 10-15ft to the 4oclock, but apparently failed to reset the striker. Pulling the slide to the rear while keeping the loaded round in the chamber and then tapping the rear to ensure it was fully in battery took care of the dead striker. The last 12-15rd a fired, extracted, and fed without issue to slide lock. Ran out of time to put another 50 AE FMJ through it, but I’m starting to think mine is acting like another guys who posted in the Reloading sub forum. It fails to eject until a few rounds warm it up and then it’s good to go. I’ll do another 50rds each of AE FMJ and handloads and if it’s still giving me fits I’ll plan to send it back to get checked out. Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. hand loads are tricky to size correctly in 5.7, also im sure you know there is a teflon like coating on the brass that should be kept on and may cause problems when polished  HOW TO RESIZE 5.7X28 BRASS LIKE A PRO |
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Posted: 3/9/2023 7:22:38 PM EDT
[#15]
Quote HistoryOriginally Posted By gaspain: hand loads are tricky to size correctly in 5.7, also im sure you know there is a teflon like coating on the brass that should be kept on and may cause problems when polished  https://www.youtube.com/watch?v=hmh8W8xj9K4Quote HistoryOriginally Posted By gaspain: Originally Posted By swreefkeeper: Originally Posted By towerofpower94: Got the Rock back out today to see if the handloads would cycle. I did another 23+1 setup and the first round failed to eject with the slide barely moving. The next 2-3rds barely cycled with me having to eject the fired cases. I then had a few that ejected the case 10-15ft to the 4oclock, but apparently failed to reset the striker. Pulling the slide to the rear while keeping the loaded round in the chamber and then tapping the rear to ensure it was fully in battery took care of the dead striker. The last 12-15rd a fired, extracted, and fed without issue to slide lock. Ran out of time to put another 50 AE FMJ through it, but I’m starting to think mine is acting like another guys who posted in the Reloading sub forum. It fails to eject until a few rounds warm it up and then it’s good to go. I’ll do another 50rds each of AE FMJ and handloads and if it’s still giving me fits I’ll plan to send it back to get checked out. Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. hand loads are tricky to size correctly in 5.7, also im sure you know there is a teflon like coating on the brass that should be kept on and may cause problems when polished https://www.youtube.com/watch?v=hmh8W8xj9K4I’m sure my handload failures to extract are from sizing the brass to fit my PS90 chamber vice SAAMI minimum the AE FMJ seems to be working now so I’m not going to press the RMA issue. |
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Posted: 3/9/2023 11:50:55 PM EDT
[#16]
Any G code RTI holsters?
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Posted: 3/10/2023 9:08:44 AM EDT
[Last Edit: towerofpower94]
[#17]
Quote HistoryOriginally Posted By bradpierson26: Any G code RTI holsters? My Safariland built for an RMR/X300 wearing G17 with threaded barrel holds my RMR/X300 wearing Rock with threaded barrel. Not sure that'll be applicable for all holsters, but might be worth a shot. ETA: the SF has the G Code RTI panel on it so I can swap holsters on my belt for different guns. |
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Posted: 3/10/2023 11:15:26 AM EDT
[#18]
Quote HistoryOriginally Posted By bradpierson26: Any G code RTI holsters? This one should be RTI compatible https://www.weare-nerd.com/sly-owb-holsters/jqb87li7sjwy3ll1juyioqcat0qesy-92drm-jpz4h |
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WA, USA
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Posted: 3/13/2023 11:37:53 AM EDT
[Last Edit: County804]
[#19]
Deleted by user as Duplicate Post
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WA, USA
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Posted: 3/13/2023 11:52:32 AM EDT
[Last Edit: County804]
[#20]
Quote HistoryOriginally Posted By swreefkeeper: Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. Do you have an MRD mounted ?. The Rock is very sensitive to the weight of the MRD and will not cycle correctly with any MRD that weighs over 1 oz if mounted directly to the slide without an adapter plate or any MRD that weighs over .7oz ( of which there are none currently being manufactured that I’m aware of ) if mounted on one of the adapter plates ( which are .31 oz in weight ). Bottom line is that the Rock will not cycle correctly with a weight of over 1 oz attached to the slide if the optics cut slide filler blank is removed. |
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Posted: 3/14/2023 9:33:11 AM EDT
[#21]
Quote HistoryOriginally Posted By swreefkeeper: Did you end up getting this resolved? Im having the same exact issues with mine. I have tried AE, 195LF, 197SR, and Speer GD. FTE happens on all ammo bust more frequently with the AE and 195LF. If you are using just factory ammo and are having FTE's, please PM me your order number. I will get you taken care of. Thank you, Josiah |
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Posted: 3/14/2023 7:24:51 PM EDT
[#22]
Quote HistoryOriginally Posted By County804: If you didn't shorten the screws to be no longer than 10.4mm in length ( they are 12mm originally) they will penetrate the two sides of the plastic striker housing and damage them to the point they cannot be removed without removing the screws and may cause them to fracture. There have not been any reports I am aware of the broken pieces causing any malfunctions but YMMV. Here are a couple of photos of the damage caused by using the 12mm long screw's without shortening them from the PSA discussion website: https://global.discourse-cdn.com/palmettostatearmory/original/3X/c/d/cd7dd971a85461fdd85753a8680b057f7e210cb4.jpeghttps://global.discourse-cdn.com/palmettostatearmory/original/3X/0/5/05042a163826ffb001d334ab2745cf10dc500822.jpeg It's easy to shorten the screws with only a file. Just screw them into one of the adapter plates that came with the Rock to use as a support and slowly file down the tip measuring the overall length frequently until it is 10.3 to 10.4mm long. When you unscrew it any damage to the threads will be repaired so that it will screw into the slide just fine.  My housing is damaged exactly the same as the photos. My Rock still functions fine but does not give me a warm fuzzy feeling having a damaged part inside. I have now trimmed the screws so that they're flush with the slide and no longer sticking thru into the housing area yet have FULL thread contact. @palmettostatearmory Will PSA replace the damaged housing? |
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WA, USA
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Posted: 3/14/2023 8:31:58 PM EDT
[#23]
From comments on the PSA discussion board, PSA has not yet offered to replace the damaged striker housings. After many, many requests, they had listed one half of the striker housing under Rock parts for sale on their website ( they never listed the other half ) but even that part is no longer listed. Numerous contacts with PSA customer service have gone unanswered and as far as I can determine, the issue is still unresolved.
This is an ongoing issue that has not been acknowledged by PSA as their responsibility. I was informed by PSA customer service that they posted this issue on their Facebook page but I have not been able to locate it and I don’t believe that their Facebook page is the appropriate forum to inform Rock Buyers of the issue. This is another example of a failure to inform actual and potential Rock buyers of compatibility issues with non PSA accessories such as which Micro Red Dot sights will function on the Rock. The “ optics ready “ Rock slides come with adapter plates to mount RMR and Doctor footprint optics. However, the description does not mention that there are currently NO RMR or Doctor footprint optics that are light enough to mount on the supplied adapter plates that will allow the Rock to reliably cycle. From a review of the posts on the PSA discussion board, the Rock Will Not reliably cycle using commercially available 5.7x28 Ammo ( resulting in failures to eject ) if an optic weighing over 1 oz is installed directly on the optics ready slide without using one of the supplied adapter plates. Since the Holosun 407KX2 and 507KX2, the Cyelee Cat Pro and all of the ADE Optics MRD are the only 1 oz or lighter sights I am aware of and all are RMS/RMSC footprint which mount directly to the slide without any adapter so will function as designed, the included adapters are currently unusable until such time as an RMR or Doctor footprint MRD that weighs .7oz or less is manufactured ( the adapter plate weighs .31oz ). |
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Posted: 3/14/2023 8:52:10 PM EDT
[#24]
Quote HistoryOriginally Posted By County804: From comments on the PSA discussion board, PSA has not yet offered to replace the damaged striker housings. After many, many requests, they had listed one half of the striker housing under Rock parts for sale on their website ( they never listed the other half ) but even that part is no longer listed. Numerous contacts with PSA customer service have gone unanswered and as far as I can determine, the issue is still unresolved. This is an ongoing issue that has not been acknowledged by PSA as their responsibility. I was informed by PSA customer service that they posted this issue on their Facebook page but I have not been able to locate it and I don't believe that their Facebook page is the appropriate forum to inform Rock Buyers of the issue. This is another example of a failure to inform actual and potential Rock buyers of compatibility issues with non PSA accessories such as which Micro Red Dot sights will function on the Rock. The " optics ready " Rock slides come with adapter plates to mount RMR and Doctor footprint optics. However, the description does not mention that there are currently NO RMR or Doctor footprint optics that are light enough to mount on the supplied adapter plates that will allow the Rock to reliably cycle. From a review of the posts on the PSA discussion board, the Rock Will Not reliably cycle using commercially available 5.7x28 Ammo ( resulting in failures to eject ) if an optic weighing over 1 oz is installed directly on the optics ready slide without using one of the supplied adapter plates. Since the Holosun 407KX2 and 507KX2, the Cyelee Cat Pro and all of the ADE Optics MRD are the only 1 oz or lighter sights I am aware of and all are RMS/RMSC footprint which mount directly to the slide without any adapter so will function as designed, the included adapters are currently unusable until such time as an RMR or Doctor footprint MRD that weighs .7oz or less is manufactured ( the adapter plate weighs .31oz ). |
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Posted: 3/14/2023 9:19:51 PM EDT
[#25]
Quote HistoryOriginally Posted By County804: From comments on the PSA discussion board, PSA has not yet offered to replace the damaged striker housings. After many, many requests, they had listed one half of the striker housing under Rock parts for sale on their website ( they never listed the other half ) but even that part is no longer listed. Numerous contacts with PSA customer service have gone unanswered and as far as I can determine, the issue is still unresolved. This is an ongoing issue that has not been acknowledged by PSA as their responsibility. I was informed by PSA customer service that they posted this issue on their Facebook page but I have not been able to locate it and I don't believe that their Facebook page is the appropriate forum to inform Rock Buyers of the issue. This is another example of a failure to inform actual and potential Rock buyers of compatibility issues with non PSA accessories such as which Micro Red Dot sights will function on the Rock. The " optics ready " Rock slides come with adapter plates to mount RMR and Doctor footprint optics. However, the description does not mention that there are currently NO RMR or Doctor footprint optics that are light enough to mount on the supplied adapter plates that will allow the Rock to reliably cycle. From a review of the posts on the PSA discussion board, the Rock Will Not reliably cycle using commercially available 5.7x28 Ammo ( resulting in failures to eject ) if an optic weighing over 1 oz is installed directly on the optics ready slide without using one of the supplied adapter plates. Since the Holosun 407KX2 and 507KX2, the Cyelee Cat Pro and all of the ADE Optics MRD are the only 1 oz or lighter sights I am aware of and all are RMS/RMSC footprint which mount directly to the slide without any adapter so will function as designed, the included adapters are currently unusable until such time as an RMR or Doctor footprint MRD that weighs .7oz or less is manufactured ( the adapter plate weighs .31oz ). The fact I can't even order replacements at my cost is even more bothersome For now, I have trimmed away the damaged area so bits and pieces can't end up causing a failure but who knows if the part itself is compromised enough to be a failure point.. |
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Posted: 3/14/2023 9:29:45 PM EDT
[#26]
Quote HistoryOriginally Posted By Buffman_LT1: I've run an RMR without issue. The General rule of thumb is 1.2-1.3oz with optics and 5.7 guns. If you run only 195/198 you might get away with an SRO. This has been common knowledge on 5.7 guns for 10+ yrs. |
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WA, USA
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Posted: 3/15/2023 12:02:38 AM EDT
[Last Edit: County804]
[#27]
My comments were based on a post on the PSA forum where the poster had a Vortex Venom 1 oz in weight ( Doctor Footprint ) mounted on his Rock with the supplied Doctor adapter plate adding .31 oz. He could not get it to eject at all using any Ammo. He removed the Venom, put on the filler plate and it functioned perfectly. He then returned the Venom and installed a direct mount Holosun 507K x2. He has not reported any issues with cycling with the Holosun.
Based on the above posts it appears some Rock owners have had no cycling problems installing an MRD using one of the adapter plates or one which weighs over 1 oz which suggests a possible quality control or design issue regarding the recoil spring assembly. |
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Posted: 3/17/2023 2:43:36 PM EDT
[#28]
If anyone has an issue with your Rock, please PM me.
Thank you, Josiah |
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Posted: 3/18/2023 2:16:14 PM EDT
[#29]
Quote HistoryOriginally Posted By Buffman_LT1: I've run an RMR without issue. The General rule of thumb is 1.2-1.3oz with optics and 5.7 guns. If you run only 195/198 you might get away with an SRO. This has been common knowledge on 5.7 guns for 10+ yrs. Swampfox offers a RMRc footprint sight that weighs 0.62 ounces! Swampfox Sentinel |
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Posted: 3/18/2023 5:39:43 PM EDT
[Last Edit: towerofpower94]
[#30]
Quote HistoryOriginally Posted By PursuitSS: Swampfox offers a RMRc footprint sight that weighs 0.62 ounces! Swampfox Sentinel Quote HistoryOriginally Posted By PursuitSS: Originally Posted By Buffman_LT1: I've run an RMR without issue. The General rule of thumb is 1.2-1.3oz with optics and 5.7 guns. If you run only 195/198 you might get away with an SRO. This has been common knowledge on 5.7 guns for 10+ yrs. Swampfox offers a RMRc footprint sight that weighs 0.62 ounces! Swampfox Sentinel I have one of those on a P80 G43 build and the G42 I have in an AIWB holster on me as I type this  No issues with either after 250+ rounds through each pistol.  Attached File |
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Posted: 3/19/2023 10:45:03 AM EDT
[#31]
That's about how mine looked. I pried the plastic back up into place and filled the cavity with UV Cured resin (Bondic). Re-assembled and have had no problems.
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ME, USA
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Posted: 3/23/2023 5:30:20 PM EDT
[#32]
Quote HistoryOriginally Posted By PalmettoStateArmory: If it isn't your handloads, just PM me and I will get you taken care of. Thank you, Josiah Quote HistoryOriginally Posted By PalmettoStateArmory: Originally Posted By towerofpower94: Swapped the Holosun 508T out for an RMR06 to cut the weight on the slide. Still having issues with failures to eject for rounds 23 through 12-10ish with the first 5-7 either failing to even cycle back fully, requiring a simple hand cycling of the slide, or leaving the fired case in the chamber and trying to load a fresh one, giving a really nice type 2 malfunction requiring all the pistol clearing fun. Going to pick up a few hundred rounds of factory AE or FNH to see if it's my handloads or the gun. Stupid fun when it runs, but spending more time locking the slide to the rear, dropping the mag, dropping the slide to get on the fired case again, and then cycling the action to eject the fired case and put a new round in the chamber is no bueno. If it isn't your handloads, just PM me and I will get you taken care of. Thank you, Josiah Same issue here, mine didn't cycle at all. PM sent. |
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Posted: 3/27/2023 5:50:44 PM EDT
[Last Edit: gaspain]
[#33]
My new Rock won't eject. The slide doesn't come back after firing. So far shot 6 rounds of FN SS197SR 40gr and 3 rounds American Eagle 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Slide and frame bought separate.
Any thoughts? @PalmettoStateArmory |
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ME, USA
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Posted: 3/27/2023 6:57:18 PM EDT
[#34]
Quote HistoryOriginally Posted By gaspain: My Rock won't eject. The slide doesn't come back. So far shot 6 rounds of FN SS197SR 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Any thoughts? Exact same here. |
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Posted: 3/27/2023 7:17:39 PM EDT
[#35]
Quote HistoryOriginally Posted By SpacemanSpiff: Exact same here. Quote HistoryOriginally Posted By SpacemanSpiff: Originally Posted By gaspain: My Rock won't eject. The slide doesn't come back. So far shot 6 rounds of FN SS197SR 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Any thoughts? Exact same here. Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I’m guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. |
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Posted: 3/27/2023 8:32:28 PM EDT
[Last Edit: gaspain]
[#36]
Quote HistoryOriginally Posted By towerofpower94: Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I’m guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. not sure if this is normal range, but the neck width expands .06mm diameter and the shoulder is .06 as well  Attached File |
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ME, USA
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Posted: 3/28/2023 7:51:57 AM EDT
[#37]
Quote HistoryOriginally Posted By towerofpower94: Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I'm guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. Quote HistoryOriginally Posted By towerofpower94: Originally Posted By SpacemanSpiff: Originally Posted By gaspain: My Rock won't eject. The slide doesn't come back. So far shot 6 rounds of FN SS197SR 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Any thoughts? Exact same here. Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I'm guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. Interesting. I have two barrels for this pistol, I'll try the other barrel to see if I have a different result. The barrels don't actually lock to the slide so I really don't understand how chamber length could cause this. Seems like it is pretty much a blowback action like the PS-90. |
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Posted: 3/28/2023 7:56:36 AM EDT
[#38]
Quote HistoryOriginally Posted By SpacemanSpiff: Interesting. I have two barrels for this pistol, I'll try the other barrel to see if I have a different result. The barrels don't actually lock to the slide so I really don't understand how chamber length could cause this. Seems like it is pretty much a blowback action like the PS-90. Quote HistoryOriginally Posted By SpacemanSpiff: Originally Posted By towerofpower94: Originally Posted By SpacemanSpiff: Originally Posted By gaspain: My Rock won't eject. The slide doesn't come back. So far shot 6 rounds of FN SS197SR 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Any thoughts? Exact same here. Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I'm guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. Interesting. I have two barrels for this pistol, I'll try the other barrel to see if I have a different result. The barrels don't actually lock to the slide so I really don't understand how chamber length could cause this. Seems like it is pretty much a blowback action like the PS-90. |
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Posted: 3/28/2023 8:26:53 AM EDT
[#39]
Quote HistoryOriginally Posted By November5: It uses the brass expansion to hold the barrel and slide together briefly, sort of a delayed blowback. Quote HistoryOriginally Posted By November5: Originally Posted By SpacemanSpiff: Originally Posted By towerofpower94: Originally Posted By SpacemanSpiff: Originally Posted By gaspain: My Rock won't eject. The slide doesn't come back. So far shot 6 rounds of FN SS197SR 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Any thoughts? Exact same here. Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I'm guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. Interesting. I have two barrels for this pistol, I'll try the other barrel to see if I have a different result. The barrels don't actually lock to the slide so I really don't understand how chamber length could cause this. Seems like it is pretty much a blowback action like the PS-90. The barrel is locked to the slide for the first bit of travel by the toggle link in the frame... The pistol itself operates on delayed blowback. |
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ME, USA
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Posted: 3/28/2023 10:23:50 AM EDT
[#40]
Quote HistoryOriginally Posted By RDTCU: The barrel is locked to the slide for the first bit of travel by the toggle link in the frame... The pistol itself operates on delayed blowback. Quote HistoryOriginally Posted By RDTCU: Originally Posted By November5: Originally Posted By SpacemanSpiff: Originally Posted By towerofpower94: Originally Posted By SpacemanSpiff: Originally Posted By gaspain: My Rock won't eject. The slide doesn't come back. So far shot 6 rounds of FN SS197SR 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Any thoughts? Exact same here. Based on the number of Rock pistols failing to eject factory ammo, and in my case handloads that operate just fine in a PS90, I'm guessing the chambers are a little short and/or tight and not letting the shoulder expansion happen as designed. Interesting. I have two barrels for this pistol, I'll try the other barrel to see if I have a different result. The barrels don't actually lock to the slide so I really don't understand how chamber length could cause this. Seems like it is pretty much a blowback action like the PS-90. The barrel is locked to the slide for the first bit of travel by the toggle link in the frame... The pistol itself operates on delayed blowback. So I just played with this a bit and I see what I think you are calling the toggle link in the frame but it never actually locks the barrel to the slide, not even briefly. The barrel floats 100% of the travel. I don't honestly know what that link even does just from casually playing with it. I think it might be what limits the travel for the barrel, hard to tell without measuring everything. The gun seems to be 100% delayed blowback/ recoil operated with the friction between the brass case and the barrel being what limits the momentum going to the slide vs the frame. I am wondering if I polish the chamber that the slide velocity will get bumped up enough to cycle? |
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Posted: 3/28/2023 10:59:44 AM EDT
[#41]
Quote HistoryOriginally Posted By SpacemanSpiff: So I just played with this a bit and I see what I think you are calling the toggle link in the frame but it never actually locks the barrel to the slide, not even briefly. The barrel floats 100% of the travel. I don't honestly know what that link even does just from casually playing with it. I think it might be what limits the travel for the barrel, hard to tell without measuring everything. The gun seems to be 100% delayed blowback/ recoil operated with the friction between the brass case and the barrel being what limits the momentum going to the slide vs the frame. I am wondering if I polish the chamber that the slide velocity will get bumped up enough to cycle? Hold down on the barrel hood and rack the slide. Can you move the slide without moving the barrel? If not, they are locked together for that portion of the slide travel. The FiveSeven and Ruger 57 have the same toggle design. If you need me to break out the calipers and show your how this all works i can... |
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ME, USA
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Posted: 3/28/2023 1:34:21 PM EDT
[#42]
Quote HistoryOriginally Posted By RDTCU: Hold down on the barrel hood and rack the slide. Can you move the slide without moving the barrel? If not, they are locked together for that portion of the slide travel. The FiveSeven and Ruger 57 have the same toggle design. If you need me to break out the calipers and show your how this all works i can... Quote HistoryOriginally Posted By RDTCU: Originally Posted By SpacemanSpiff: So I just played with this a bit and I see what I think you are calling the toggle link in the frame but it never actually locks the barrel to the slide, not even briefly. The barrel floats 100% of the travel. I don't honestly know what that link even does just from casually playing with it. I think it might be what limits the travel for the barrel, hard to tell without measuring everything. The gun seems to be 100% delayed blowback/ recoil operated with the friction between the brass case and the barrel being what limits the momentum going to the slide vs the frame. I am wondering if I polish the chamber that the slide velocity will get bumped up enough to cycle? Hold down on the barrel hood and rack the slide. Can you move the slide without moving the barrel? If not, they are locked together for that portion of the slide travel. The FiveSeven and Ruger 57 have the same toggle design. If you need me to break out the calipers and show your how this all works i can... Ahh ok you are right, I put it back together and I see what you are saying. It isn't locked 1:1 like a Browning action, the linkage forces the slide to move proportionally to the travel of the barrel. Pretty cool. |
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Posted: 3/29/2023 9:04:52 AM EDT
[#43]
Quote HistoryOriginally Posted By gaspain: My new Rock won't eject. The slide doesn't come back after firing. So far shot 6 rounds of FN SS197SR 40gr and 3 rounds American Eagle 40gr. No optic installed, just the blocking plate. Rails are lightly greased. Slide and frame bought separate. Any thoughts? @PalmettoStateArmory If anyone is having issues, please PM me your order number and we will get you taken care of. Thank you, Josiah |
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ME, USA
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Posted: 4/3/2023 6:32:11 PM EDT
[#44]
So just to follow up on this, I did some more testing on mine with the 2nd barrel I have and it worked fine.
So I have one barrel that works (unthreaded) and one that doesn't (threaded). For the sake of science I am going to get some measurements off of these barrels to see if I can tell why one would work and one wouldn't. |
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Posted: 4/3/2023 6:47:12 PM EDT
[#45]
PSA had me send mine back to them. Still waiting.
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Posted: 4/3/2023 7:17:43 PM EDT
[#46]
Quote HistoryOriginally Posted By SpacemanSpiff: So just to follow up on this, I did some more testing on mine with the 2nd barrel I have and it worked fine. So I have one barrel that works (unthreaded) and one that doesn't (threaded). For the sake of science I am going to get some measurements off of these barrels to see if I can tell why one would work and one wouldn't. The one I’m having issues with is also threaded. Wonder if a batch of threaded barrels were a touch on the tight side. |
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Posted: 4/3/2023 10:26:18 PM EDT
[#47]
Mine was non threaded
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ME, USA
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Posted: 4/3/2023 11:43:49 PM EDT
[#48]
Quote HistoryOriginally Posted By towerofpower94: The one I'm having issues with is also threaded. Wonder if a batch of threaded barrels were a touch on the tight side. Quote HistoryOriginally Posted By towerofpower94: Originally Posted By SpacemanSpiff: So just to follow up on this, I did some more testing on mine with the 2nd barrel I have and it worked fine. So I have one barrel that works (unthreaded) and one that doesn't (threaded). For the sake of science I am going to get some measurements off of these barrels to see if I can tell why one would work and one wouldn't. The one I'm having issues with is also threaded. Wonder if a batch of threaded barrels were a touch on the tight side. Honestly I can't find a measurable difference between the two barrels I have. Headspace is the same as far as I can measure. Every other dimension is pretty much exact same too. If there is a geometry issue somewhere it must be pretty subtle. |
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ME, USA
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Posted: 4/3/2023 11:54:11 PM EDT
[#49]
I am leaning towards just polishing the chamber and seeing if that works. I'm thinking it is just a chamber coefficient of friction issue since this is basically a lever delayed blowback.
The bad barrel I have is one of the "chameleon" pvd finish barrels but it unfortunately came with some surface rust and upon further inspection the chamber has some surface rust inside as well which is all starting to make sense. Sucks to pay extra to get a rusty barrel. |
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Posted: 4/4/2023 8:27:37 AM EDT
[#50]
Quote HistoryOriginally Posted By SpacemanSpiff: I am leaning towards just polishing the chamber and seeing if that works. I'm thinking it is just a chamber coefficient of friction issue since this is basically a lever delayed blowback. The bad barrel I have is one of the "chameleon" pvd finish barrels but it unfortunately came with some surface rust and upon further inspection the chamber has some surface rust inside as well which is all starting to make sense. Sucks to pay extra to get a rusty barrel. That sucks. What are you going to use to polish the chamber? Will probably do mine as well, as I have nothing to lose at this point. Any tips, tricks, or product recommendations happily accepted as I've never polished a chamber. |
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