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Posted: 8/12/2022 5:11:45 PM EST
[#1]
Quote HistoryQuoted: Anybody try a Holosun hs503cu optic on one of these? Not a “cu” model but I have a 503R on my AP5-P and it’s a phenomenal optic. |
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Posted: 8/12/2022 5:14:55 PM EST
[#2]
Quote HistoryQuoted: Anybody try a Holosun hs503cu optic on one of these?  Attached FileI need a battlesteel mount though. I would like to try cowittness. I have the top of the hood in the bottom of the sight picture with the current mount. |
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Posted: 8/12/2022 7:05:26 PM EST
[#3]
Anyone here buy the NAVY trigger housing that was $9 and now $25?
How are the conditions of them since they’re used? Are they beat to shit or are they nice? |
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Posted: 8/12/2022 7:09:53 PM EST
[#4]
Quote HistoryQuoted: Anyone here buy the NAVY trigger housing that was $9 and now $25? How are the conditions of them since they’re used? Are they beat to shit or are they nice? I'll let you know next week when it shows up. But someone's already posted that the ones they got was in pretty good shape |
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Posted: 8/12/2022 7:15:38 PM EST
[#5]
Quote HistoryQuoted: Anyone here buy the NAVY trigger housing that was $9 and now $25? How are the conditions of them since they’re used? Are they beat to shit or are they nice? My two are good to excellent. Very little wear and cleaned-up nicely with soap and water. I also have one of the ones they modify from these to make the MP5K housing. It's maybe just slightly nicer? |
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Posted: 8/12/2022 7:46:04 PM EST
[#6]
Mmmm, tasty.
https://www.youtube.com/watch?v=meEyaruiRk8&ab_channel=ClipMaster |
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Posted: 8/12/2022 8:14:55 PM EST
[#7]
Quote HistoryQuoted: I'll let you know next week when it shows up. But someone's already posted that the ones they got was in pretty good shape Where can you get these? |
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Posted: 8/12/2022 8:19:03 PM EST
[#8]
Quote HistoryQuoted: Where can you get these? |
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Posted: 8/12/2022 11:26:28 PM EST
[#9]
Quote HistoryQuoted: https://www.ar15.com/media/mediaFiles/480443/20220511_063437_jpg-2486702.JPG I need a battlesteel mount though. I would like to try cowittness. I have the top of the hood in the bottom of the sight picture with the current mount. Quote HistoryQuoted: Quoted: Anybody try a Holosun hs503cu optic on one of these? https://www.ar15.com/media/mediaFiles/480443/20220511_063437_jpg-2486702.JPG I need a battlesteel mount though. I would like to try cowittness. I have the top of the hood in the bottom of the sight picture with the current mount. Mine has top of the hood at the very bottom also. I think that’s what a lot of people prefer to use and find the cowitness is way too busy/vision blocked. I have seen the top of the circle cut away with just the wings left. I really like the Holo 509T on this gun. The American defense mount is quick release if I ever need to pop it off.  Attached File |
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Posted: 8/13/2022 11:47:55 AM EST
[#10]
Something doesn't add up - just got this Navy SEF piece (by the way it was a listed as new, it doesn't look new at all but that might be whatever).
Bigger issue is it just won't fit period. Not even close. Both braces shown are popular MP5/SP5 braces known to be uber compatible. Has Hkparts simply shipped the wrong part? It was supposed to be a direct drop in, but this isn't at all, not even close - if I had to do fitting I'd have to Dremel away tons of stuff. Link to part as seen in this thread, earlier: What I ordered ... what I got (pictures). I think they mistakenly sent me a used MP5k housing. Can anyone skilled enough to know both please confirm? I'm writing Hkparts now  Attached File Attached File |
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Posted: 8/13/2022 11:50:11 AM EST
[#11]
Quote HistoryQuoted: Something doesn't add up - just got this Navy SEF piece (by the way it was a listed as new, it doesn't look new at all but that might be whatever). Bigger issue is it just won't fit period. Not even close. Both braces shown are popular MP5/SP5 braces known to be uber compatible. Has Hkparts simply shipped the wrong part? It was supposed to be a direct drop in, but this isn't at all, not even close - if I had to do fitting I'd have to Dremel away tons of stuff. Link to part as seen in this thread, earlier: What I ordered ... what I got (pictures). I think they mistakenly sent me a used MP5k housing. Can anyone skilled enough to know both please confirm? I'm writing Hkparts now https://www.ar15.com/media/mediaFiles/326068/IMG_1732_jpg-2487612.JPG https://www.ar15.com/media/mediaFiles/326068/IMG_1733_jpg-2487613.JPG What you linked to has that tang coming off the back, what you have pictured does not? <- MP5 newb btw |
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Posted: 8/13/2022 11:57:05 AM EST
[#12]
Quote HistoryQuoted: Something doesn't add up - just got this Navy SEF piece (by the way it was a listed as new, it doesn't look new at all but that might be whatever). Bigger issue is it just won't fit period. Not even close. Both braces shown are popular MP5/SP5 braces known to be uber compatible. Has Hkparts simply shipped the wrong part? It was supposed to be a direct drop in, but this isn't at all, not even close - if I had to do fitting I'd have to Dremel away tons of stuff. Link to part as seen in this thread, earlier: What I ordered ... what I got (pictures). I think they mistakenly sent me a used MP5k housing. Can anyone skilled enough to know both please confirm? I'm writing Hkparts now https://www.ar15.com/media/mediaFiles/326068/IMG_1732_jpg-2487612.JPG https://www.ar15.com/media/mediaFiles/326068/IMG_1733_jpg-2487613.JPG I believe you are correct that that is a mp5k housing. |
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Posted: 8/13/2022 11:57:11 AM EST
[#13]
Quote HistoryQuoted: Something doesn't add up - just got this Navy SEF piece (by the way it was a listed as new, it doesn't look new at all but that might be whatever). Bigger issue is it just won't fit period. Not even close. Both braces shown are popular MP5/SP5 braces known to be uber compatible. Has Hkparts simply shipped the wrong part? It was supposed to be a direct drop in, but this isn't at all, not even close - if I had to do fitting I'd have to Dremel away tons of stuff. Link to part as seen in this thread, earlier: What I ordered ... what I got (pictures). I think they mistakenly sent me a used MP5k housing. Can anyone skilled enough to know both please confirm? I'm writing Hkparts now https://www.ar15.com/media/mediaFiles/326068/IMG_1732_jpg-2487612.JPG https://www.ar15.com/media/mediaFiles/326068/IMG_1733_jpg-2487613.JPG That's for the mp5k model I'm pretty sure. Do you have the ap5/p or full size? Edit That's the one I'm interested in so I'm definitely curious on what you are trying to use it on. |
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Posted: 8/13/2022 11:57:56 AM EST
[#14]
Quote HistoryQuoted: What you linked to has that tang coming off the back, what you have pictured does not? <- MP5 newb btw I'm leaning of unwanted mistake on Hkparts |
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Posted: 8/13/2022 11:58:50 AM EST
[#15]
Quote HistoryQuoted: That's for the mp5k model I'm pretty sure. Do you have the ap5/p or full size? |
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Posted: 8/13/2022 12:02:22 PM EST
[#16]
Quote HistoryQuoted: Full size (don't have it yet, it's just the MKE AP5 I bought looking at this damn thread) - PS thanks all the brothers for the prompt replies Yeah that's not going to work with the full size. I'd say buy the $25 housing and cut the tang if you are handy and want to save $100+. Edit I'm just starting to research all this stuff myself so don't take what I say verbatim  |
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Posted: 8/13/2022 12:09:04 PM EST
[#17]
Quote HistoryQuoted: Something doesn't add up - just got this Navy SEF piece (by the way it was a listed as new, it doesn't look new at all but that might be whatever). Bigger issue is it just won't fit period. Not even close. Both braces shown are popular MP5/SP5 braces known to be uber compatible. Has Hkparts simply shipped the wrong part? It was supposed to be a direct drop in, but this isn't at all, not even close - if I had to do fitting I'd have to Dremel away tons of stuff. Link to part as seen in this thread, earlier: What I ordered ... what I got (pictures). I think they mistakenly sent me a used MP5k housing. Can anyone skilled enough to know both please confirm? I'm writing Hkparts now https://www.ar15.com/media/mediaFiles/326068/IMG_1732_jpg-2487612.JPG https://www.ar15.com/media/mediaFiles/326068/IMG_1733_jpg-2487613.JPG This is the item you received: https://hkparts.net/product/hk-sef-mp5k-navy-style-trigger-housing-push-pin-used.htm/ |
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Posted: 8/13/2022 12:09:11 PM EST
[#18]
Quote HistoryQuoted: Yeah that's not going to work with the full size. I'd say buy the $25 housing and cut the tang if you are handy and want to save $100+. Edit I'm just starting to research all this stuff myself so don't take what I say verbatim No man - this is going straight back to HKparts with a return ticket AND THEY are going to ship out to me what I had ordered and paid for in the first place. Wait and you see  
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Posted: 8/13/2022 12:10:01 PM EST
[#19]
Quote HistoryQuoted: As the others said, what you received is the "K" trigger housing, specifically one made from modifying a used HK91 housing. It will not work on the full size AP5. This is the item you received: https://hkparts.net/product/hk-sef-mp5k-navy-style-trigger-housing-push-pin-used.htm/ They will pay dearly (and ship mine quickly now)!
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Posted: 8/13/2022 12:20:26 PM EST
[#20]
Edit: NM, answered
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Posted: 8/13/2022 1:05:17 PM EST
[#21]
Aside from the barrel length is the top receiver and the trigger housing grip the same size as both the standard version and the K version of the MP5 family?
I know the endcap is somewhat different between both models. |
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Posted: 8/13/2022 1:37:05 PM EST
[#22]
Quote HistoryQuoted: Aside from the barrel length is the top receiver and the trigger housing grip the same size as both the standard version and the K version of the MP5 family? I know the endcap is somewhat different between both models. This should help visualize the length difference. The trigger housings have the same overall size with regard to the plastic area, but the full size housing has an extended metal tang that goes under the end cap. Notice the different locations of the rear pin holes.  |
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Posted: 8/13/2022 1:55:07 PM EST
[#23]
Quote HistoryQuoted: HK, MKE, Canik, Zenith. That pretty much the mags in preferential order? POF if you can find them but I doubt they'll be much cheaper than what you have listed. |
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Posted: 8/13/2022 3:58:42 PM EST
[#24]
Quote HistoryQuoted: No, both the trigger housing and the receiver are shorter in the back on the K models. The actual pistol grip itself is the same size though. This should help visualize the length difference. The trigger housings have the same overall size with regard to the plastic area, but the full size housing has an extended metal tang that goes under the end cap. Notice the different locations of the rear pin holes. https://www.ar15.com/media/mediaFiles/157876/Cosgl7D-2487745.jpg Quote HistoryQuoted: Quoted: Aside from the barrel length is the top receiver and the trigger housing grip the same size as both the standard version and the K version of the MP5 family? I know the endcap is somewhat different between both models. This should help visualize the length difference. The trigger housings have the same overall size with regard to the plastic area, but the full size housing has an extended metal tang that goes under the end cap. Notice the different locations of the rear pin holes. https://www.ar15.com/media/mediaFiles/157876/Cosgl7D-2487745.jpg Nice picture, Thank you 
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Posted: 8/13/2022 5:09:04 PM EST
[#25]
So I put a couple mags through my full size MKE today and had 7-8 FTE’s.
One mag of Tula 115gr brass case which honestly I expected to have problems with. Then one mag of my 115gr reloads with xtreme bullets and titegroup powder. About same number of FTE’s with both. Do y’all think a German extractor and extractor spring would help or should I just go ahead and load up some 124’s? It was great to finally get out and shoot it some, so smooth and soft 
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Posted: 8/13/2022 5:29:03 PM EST
[#26]
Quote HistoryQuoted: So I put a couple mags through my full size MKE today and had 7-8 FTE's. One mag of Tula 115gr brass case which honestly I expected to have problems with. Then one mag of my 115gr reloads with xtreme bullets and titegroup powder. About same number of FTE's with both. Do y'all think a German extractor and extractor spring would help or should I just go ahead and load up some 124's? It was great to finally get out and shoot it some, so smooth and soft Several members here have mentioned that you can use the rifle type spring grey/black verses the copper color ones for better extraction. I do not have any experience since I am still on a waiting list for a SP5. |
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Posted: 8/13/2022 5:35:26 PM EST
[#27]
Quote HistoryQuoted: So I put a couple mags through my full size MKE today and had 7-8 FTE’s. One mag of Tula 115gr brass case which honestly I expected to have problems with. Then one mag of my 115gr reloads with xtreme bullets and titegroup powder. About same number of FTE’s with both. Do y’all think a German extractor and extractor spring would help or should I just go ahead and load up some 124’s? It was great to finally get out and shoot it some, so smooth and soft Personally, I'd go buy some factory 124 gr. ammo and run a few boxes of that through it. Traditional NATO ammo is 124 gr. and runs hot. IIRC, 115 grain ammo isn't ideal for this platform, although it can run it. Give it a good 100 plus round break-in and go from there before swapping anything around. Now off to the garage to make sure I still have a case of 124 gr. before my AP5's show-up this week. |
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Posted: 8/13/2022 5:38:00 PM EST
[#28]
Quote HistoryQuoted: Several members here have mentioned that you can use the rifle type spring grey/black verses the copper color ones for better extraction. I do not have any experience since I am still on a waiting list for a SP5. Many people suggest running known good factory 124gr. NATO spec ammo for the first hundred or so to make sure it operates well and to help break it in. And of course, strip the gun down and clean it all up inside and the bolt assembly to remove the coating of rust prevention goo. |
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Posted: 8/13/2022 6:58:34 PM EST
[#29]
Good to know, thanks guys. I’ll give it a thorough cleaning and run some of my 124gr Berrys reloads through it next time out and see how it does. Pretty sure I have some 124gr factory stuff somewhere too.
I’m also only using the mag that came with it. Haven’t been able to order any HK mags yet. |
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Posted: 8/14/2022 12:54:13 AM EST
[#30]
Quote HistoryQuoted: Awesome, thanks. Just ordered one of these and a wide forearm. Hope my dremel skills are up to the challenge  Quote HistoryQuoted: Quoted: Quoted: Is this the correct trigger housing to go with the full size model? https://hkparts.net/product/hk-sef-navy-style-polymer-housing-push-pin-p2462.htm/ And if you're handy, you can cut down one of these and save $100. I just received the two I ordered and they are in excellent condition (and were only $9 before they went up to $25). HK G3, 91, PTR – SEF Push Pin – Navy Style Housing – Good Shape Awesome, thanks. Just ordered one of these and a wide forearm. Hope my dremel skills are up to the challenge For what it's worth, these are $40: https://www.gunpartscorp.com/products/985060  Attached File |
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Posted: 8/14/2022 5:07:39 AM EST
[#31]
Ordered mine yesterday.
I got the full size one, extra mags, etc. Always wanted an MP5 clone. |
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Posted: 8/14/2022 9:29:30 AM EST
[#32]
For you guys with the K versions if you're looking to SBR, RTG Parts just got in some H&K contract K grips.
$29.95 HK K grip I don't have a K yet but I'm going to get one... so I went ahead and ordered a grip |
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Posted: 8/14/2022 11:28:15 AM EST
[#33]
I have a Zf5 on the way and Im looking at brace options. I like the KES collapsable style with the tailhook but Im wondering how they are to actually shoot with. Are they comfortable ergonomically?
Also is it worth the hassle to sbr it? I dont mind the $200 but how much of a hassle is it to get /own an sbr? |
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Posted: 8/14/2022 11:34:22 AM EST
[#34]
Quote HistoryQuoted: I have a Zf5 on the way and Im looking at brace options. I like the KES collapsable style with the tailhook but Im wondering how they are to actually shoot with. Are they comfortable ergonomically? Also is it worth the hassle to sbr it? I dont mind the $200 but how much of a hassle is it to get /own an sbr? The folding SB brace that I had before I did the paperwork for an SBR was actually pretty comfortable to shoot if you don't mind something folding |
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Posted: 8/14/2022 11:48:32 AM EST
[#35]
Quote HistoryQuoted: The folding SB brace that I had before I did the paperwork for an SBR was actually pretty comfortable to shoot if you don't mind something folding I had that brace on my Scorpion and it is pretty comfortable. I may end up going that route considering the price and availability of KES and the tailhook. |
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Posted: 8/14/2022 11:51:32 AM EST
[#36]
Quote HistoryQuoted: I have a Zf5 on the way and Im looking at brace options. I like the KES collapsable style with the tailhook but Im wondering how they are to actually shoot with. Are they comfortable ergonomically? Also is it worth the hassle to sbr it? I dont mind the $200 but how much of a hassle is it to get /own an sbr? So that was interesting - I thought. I pretty much likely will SBR this thing (once I get it, test it) - hell, I SBR'd my EVO, I don't see why I shouldn't SBR an MP5 (first of my life). The B&T is probably higher in quality too - it's even sturdier, bigger - it's truly impressive. I WILL post the AP5 with both once I pick it up tomorrow. ... reposting side by side picture posted by me earlier  Attached File |
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Posted: 8/14/2022 12:27:43 PM EST
[#37]
Quote HistoryQuoted: ... I think the higher end two available now are the B&T and the KES. I bought both, because this project was important to me and because I can SBR with those as well - they both have an additional part that can be purchased to 'complete' the stock, undoing the brace (you remove the tailhook on both and add a stock pad piece - done, you now have a stock). So that was interesting - I thought. I pretty much likely will SBR this thing (once I get it, test it) - hell, I SBR'd my EVO, I don't see why I shouldn't SBR an MP5 (first of my life). The B&T is probably higher in quality too - it's even sturdier, bigger - it's truly impressive. I WILL post the AP5 with both once I pick it up tomorrow. ... reposting side by side picture posted by me earlier https://www.ar15.com/media/mediaFiles/326068/small_jpg-2484011_JPG-2488928.JPG The B&T is a bit too chunky for my taste. I really like the KES , I just hate to spend that much and not enjoy shooting it. Looks great but I dont know how comfortable it is to shoot. |
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Posted: 8/14/2022 1:56:13 PM EST
[#38]
Love mine, this is one of my three.
 " />But once you get one you want to add it’s big brother…. 
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Posted: 8/14/2022 2:39:25 PM EST
[#39]
... I'm really attached to the traditional look of the A3, original MP5 stock.
Anything that deviates bothers me a bit - but I didn't want to spend 1.2k on it and that's the current price of one - for the ones that have multiple positions. Essentially with pretty much no exception, all the other offerings in the world don't interest me. I truly went with what bothered me the least with these two braces - the other ones really I don't care for. Should an affordable stock (Zenith?) come out in the future, I'll SBR and buy that one - then sell all the others. |
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Posted: 8/14/2022 3:46:35 PM EST
[#40]
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Posted: 8/14/2022 3:55:15 PM EST
[#41]
Quote HistoryI understand why some are saying "why" when AR pistols are comparbable in size, but I'm really looking forward to working with this gun. I've screwed up a couple things though and could use some help. I picked up a HS503CU. The riser is wayyyy to tall. I don't want an absolute co-witness, but one that puts the dot above by a margin. Which one? The rail came with the standard package from Atlantic. I could murder the designer, btw. Install was a PIA. I also picked up a SF and mount, only to discover that the hand stop forend wont accomadate it. Not sure where to go there. I'd like the mount, but really need to slow down throwing money at this thing. My 14 yo really enjoyed breaking it down and lubing it with me. I think he knows it will be his some day. I currently have 6 cans in jail, and its killing me. |
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Posted: 8/14/2022 4:31:15 PM EST
[#42]
Quote HistoryQuoted: I understand why some are saying "why" when AR pistols are comparbable in size, but I'm really looking forward to working with this gun. I've screwed up a couple things though and could use some help. I picked up a HS503CU. The riser is wayyyy to tall. I don't want an absolute co-witness, but one that puts the dot above by a margin. Which one? The rail came with the standard package from Atlantic. I could murder the designer, btw. Install was a PIA. I also picked up a SF and mount, only to discover that the hand stop forend wont accomadate it. Not sure where to go there. I'd like the mount, but really need to slow down throwing money at this thing. My 14 yo really enjoyed breaking it down and lubing it with me. I think he knows it will be his some day. I currently have 6 cans in jail, and its killing me. As for the light, a cheap way is the Magpul MOE forend, it'll have a Mlok slot you can capitalize on for mounting. |
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Posted: 8/14/2022 5:15:15 PM EST
[#43]
Quote HistoryQuoted: ... I'm really attached to the traditional look of the A3, original MP5 stock. Anything that deviates bothers me a bit - but I didn't want to spend 1.2k on it and that's the current price of one - for the ones that have multiple positions. Essentially with pretty much no exception, all the other offerings in the world don't interest me. I truly went with what bothered me the least with these two braces - the other ones really I don't care for. Should an affordable stock (Zenith?) come out in the future, I'll SBR and buy that one - then sell all the others. Same. Those sliding braces look like shit to me. I will just save up and go A3 |
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Posted: 8/14/2022 5:17:50 PM EST
[#44]
Get BOTH! This is the way
AP5 and AP5-P
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Posted: 8/14/2022 6:02:53 PM EST
[#45]
Quote History@Undaunted What's the barrel length on that AR? Looks shorter than 10.5, something like 7.5? |
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Posted: 8/14/2022 6:08:35 PM EST
[#46]
I hate these screw on optic mounts with a passion. Are there any low profile pic rails that attach with a claw mount like the HK gods intended?
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Posted: 8/14/2022 7:35:16 PM EST
[#47]
Quote HistoryQuoted: @Undaunted What's the barrel length on that AR? Looks shorter than 10.5, something like 7.5? 8.3 .300 blk hog medicine. |
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Posted: 8/15/2022 12:48:57 AM EST
[#48]
Quote HistoryQuoted: I hate these screw on optic mounts with a passion. Are there any low profile pic rails that attach with a claw mount like the HK gods intended? I got one from HKParts for my SP5. Went on a whole lot easier than the one that came with the AP5-P. I think it was the Midwest Industries one. Around $75. |
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Posted: 8/15/2022 8:04:45 AM EST
[#49]
Quote HistoryQuoted: I got one from HKParts for my SP5. Went on a whole lot easier than the one that came with the AP5-P. I think it was the Midwest Industries one. Around $75. I'll be able to report back today on the MI rail as well; so far reports say good to go... |
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Posted: 8/15/2022 10:55:21 AM EST
[#50]
what are ya'll doing for lights / light mounts? I don't really need to replace the foregrip if there's something that works without.
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