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Posted: 6/9/2022 8:47:32 AM EDT
[#1]
Quote HistoryOriginally Posted By MGYSGT8541: Do MCX Virtus LE versions all come with Chromelined barrels? It doesn't say. I have an 11.5 inch Virtus in Coyote tan cerakote and it has a chromelined barrel. I got it in 2019 I believe. I called sig about it and they confirmed it was chrome. Some do, some dont. Depends on the contract. |
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Posted: 7/9/2022 7:56:47 PM EDT
[#2]
For best results with an AR lower, does a milspec forged yield the best fit? My two ADM lowers leave gaps everywhere
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NC, USA
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Posted: 7/10/2022 8:47:58 AM EDT
[#3]
Quote HistoryOriginally Posted By Moto-M187: For best results with an AR lower, does a milspec forged yield the best fit? My two ADM lowers leave gaps everywhere I have run a hybrid on Sig M400 and Noveske lowers and both of those still had a gap. Not much, but it was there. |
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Posted: 9/4/2022 9:28:38 AM EDT
[#4]
What thread pattern is used on Virtus 300BLK barrels? Sig doesn't specify anywhere on their website.
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NV, USA
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Posted: 9/4/2022 8:14:50 PM EDT
[#5]
Quote HistoryOriginally Posted By BlackArrow: What thread pattern is used on Virtus 300BLK barrels? Sig doesn't specify anywhere on their website. 5/8x24 |
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Posted: 9/17/2022 7:42:37 PM EDT
[#6]
Quote HistoryOriginally Posted By cmcflex: 5/8x24 Quote HistoryOriginally Posted By cmcflex: Originally Posted By BlackArrow: What thread pattern is used on Virtus 300BLK barrels? Sig doesn't specify anywhere on their website. 5/8x24 The muzzle is threaded 5/8"-24 with a 25deg tapered shoulder behind the the threads. |
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Posted: 10/7/2022 5:43:18 PM EDT
[#7]
We need to update this now that the MCX Spear has come out!
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NC, USA
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Posted: 10/15/2022 6:53:11 AM EDT
[#8]
Quote HistoryOriginally Posted By BurtSaun1049: We need to update this now that the MCX Spear has come out! Added first pass at Spear-LT content. |
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Posted: 12/25/2022 7:31:52 PM EDT
[#9]
Originally Posted By MGYSGT8541: Do MCX Virtus LE versions all come with Chromelined barrels? It doesn't say. I have an 11.5 inch Virtus in Coyote tan cerakote and it has a chromelined barrel. I got it in 2019 I believe. I called sig about it and they confirmed it was chrome. I recently purchased a SIG MCX G2 WRMCX-16B-TAP-P from Proven Arms and Outfitters. They had this helpful chart explaining the differences between the Virtus and TAP-P models. Has @coregon already mentioned, different contracts contain different specs so there may be some variations even to this chart.  Attached File |
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NC, USA
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Posted: 12/26/2022 8:53:57 AM EDT
[#10]
Quote HistoryOriginally Posted By GLD1980: I recently purchased a SIG MCX G2 WRMCX-16B-TAP-P from Proven Arms and Outfitters. They had this helpful chart explaining the differences between the Virtus and TAP-P models. Has @coregon already mentioned, different contracts contain different specs so there may be some variations even to this chart. https://www.ar15.com/media/mediaFiles/196790/MCX-Rifle-Differences_jpg-2648866.JPG Thanks, I'll add that to the first page. |
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NC, USA
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Posted: 1/8/2023 8:03:24 AM EDT
[#11]
Looks like we'll have another update soon.
 What is the Sig MCX RSAR? (New SOCOM PDW) |
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NC, USA
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Posted: 1/13/2023 8:48:32 AM EDT
[#12]
Added gas port size screencap posted by @coltc
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ME, USA
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Posted: 1/14/2023 8:54:23 AM EDT
[#13]
Quote HistoryOriginally Posted By SpyHawk: Looks like we'll have another update soon.  https://www.youtube.com/watch?v=e6RbfJqETmMI might have missed it, but.. does James or the video mention the 7.75" barrel at all here? Still haven't seen much info about it.. it's on a Rattler setup in the new Sig Experience Center Museum. |
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NC, USA
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Posted: 1/14/2023 9:33:14 AM EDT
[#14]
Quote HistoryOriginally Posted By kilofoxtrot: I might have missed it, but.. does James or the video mention the 7.75" barrel at all here? Still haven't seen much info about it.. it's on a Rattler setup in the new Sig Experience Center Museum. Quote HistoryOriginally Posted By kilofoxtrot: Originally Posted By SpyHawk: Looks like we'll have another update soon. https://www.youtube.com/watch?v=e6RbfJqETmMI might have missed it, but.. does James or the video mention the 7.75" barrel at all here? Still haven't seen much info about it.. it's on a Rattler setup in the new Sig Experience Center Museum. Funny you mention that. They just released a new video on the 7.75" RSAR. This suggests to me there may be something coming soon. |
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Posted: 1/14/2023 11:54:37 AM EDT
[#15]
Quote HistoryOriginally Posted By SpyHawk: Funny you mention that. They just released a new video on the 7.75" RSAR. This suggests to me there may be something coming soon. Quote HistoryOriginally Posted By SpyHawk: Originally Posted By kilofoxtrot: Originally Posted By SpyHawk: Looks like we'll have another update soon. https://www.youtube.com/watch?v=e6RbfJqETmMI might have missed it, but.. does James or the video mention the 7.75" barrel at all here? Still haven't seen much info about it.. it's on a Rattler setup in the new Sig Experience Center Museum. Funny you mention that. They just released a new video on the 7.75" RSAR. This suggests to me there may be something coming soon. There's always something coming... |
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Posted: 1/14/2023 2:40:50 PM EDT
[#16]
Quote HistoryOriginally Posted By coregon: There's always something coming... Quote HistoryOriginally Posted By coregon: Originally Posted By SpyHawk: Originally Posted By kilofoxtrot: Originally Posted By SpyHawk: Looks like we'll have another update soon. https://www.youtube.com/watch?v=e6RbfJqETmMI might have missed it, but.. does James or the video mention the 7.75" barrel at all here? Still haven't seen much info about it.. it's on a Rattler setup in the new Sig Experience Center Museum. Funny you mention that. They just released a new video on the 7.75" RSAR. This suggests to me there may be something coming soon. There's always something coming... Or better yet, start a new thread with MSRP, caliber, configuration, and release dates... 
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Posted: 1/20/2023 5:16:16 PM EDT
[#17]
Quote HistoryOriginally Posted By JAG2955: Can we ask OP to add SPEAR-H to his title yet? Or better yet, start a new thread with MSRP, caliber, configuration, and release dates... Sure
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NC, USA
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Posted: 1/21/2023 2:43:24 PM EDT
[#18]
I don't know. I kind of feel like the big boy should be it's own. I mean, really the only thing they physically have in common, other than general layout characteristics, is the pistol grip and stock. They really are otherwise different animals with different operating systems.
But if you guys want them combined, it's certainly doable. |
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TX, USA
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Posted: 4/13/2023 2:28:35 PM EDT
[Last Edit: ohsnapchexmix]
[#19]
Howdy y'all, just joined to try to get and perhaps help provide some information. Does anyone have any information regarding the 7.62x39 spear lt gas valves? Do we have confirmation if they're they same or different from the Virtus ones? Sig just put some out on their store front but the picture indicates the 11.5" x39 valve is J02 which is the same as the 11.5" Virtus. That sound right?
Just wanted to edit to add that I've been sending my spear lt in for several RMA's due to issues firing suppressed, and I now have a new gas valve not listed, T05. Pin gauges have been ordered so I can provide an update on Saturday. |
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NC, USA
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Posted: 4/14/2023 7:07:13 AM EDT
[#20]
Quote HistoryOriginally Posted By ohsnapchexmix: Howdy y'all, just joined to try to get and perhaps help provide some information. Does anyone have any information regarding the 7.62x39 spear lt gas valves? Do we have confirmation if they're they same or different from the Virtus ones? Sig just put some out on their store front but the picture indicates the 11.5" x39 valve is J02 which is the same as the 11.5" Virtus. That sound right? Just wanted to edit to add that I've been sending my spear lt in for several RMA's due to issues firing suppressed, and I now have a new gas valve not listed, T05. Pin gauges have been ordered so I can provide an update on Saturday. Good question. I don't really know. Maybe somebody can shed some light on it? |
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TX, USA
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Posted: 4/15/2023 8:38:40 PM EDT
[#21]
Ok according to the cheapo pin gauge set I ordered, the minus gas setting for the T05 plug on my 11.5" spear lt in 7.62x39 is between .062" and .063". The plus setting is between .066" and .067".
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Posted: 5/7/2023 8:10:36 AM EDT
[#22]
Where are people buying the black Spear LT LE rifles that I’m starting to see pop up?
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WA, USA
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Posted: 5/7/2023 2:15:52 PM EDT
[#23]
Muzzle device FAQ info.
Asking here first instead of starting new thread. Any info on muzzle device removal? 1. OEM muzzle devices. Does sig use Rocksett or different thread lock compound that would dictate any prep soak? 2. What is recommended to secure barrel for removal/install of muzzle devices? Are there any MCX specific tools like a BEV block or reaction rod for these barrels? 3. Torque specs or any considerations in using the taper adapter or timing shims? |
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TX, USA
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Posted: 5/7/2023 7:05:32 PM EDT
[#24]
Quote HistoryOriginally Posted By Sideswipeasaurus: Muzzle device FAQ info. Asking here first instead of starting new thread. Any info on muzzle device removal? 1. OEM muzzle devices. Does sig use Rocksett or different thread lock compound that would dictate any prep soak? 2. What is recommended to secure barrel for removal/install of muzzle devices? Are there any MCX specific tools like a BEV block or reaction rod for these barrels? 3. Torque specs or any considerations in using the taper adapter or timing shims?
Happy to be corrected where I'm wrong. |
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Posted: 5/8/2023 8:14:07 AM EDT
[#25]
Quote HistoryOriginally Posted By Sideswipeasaurus: Muzzle device FAQ info. Asking here first instead of starting new thread. Any info on muzzle device removal? 1. OEM muzzle devices. Does sig use Rocksett or different thread lock compound that would dictate any prep soak? 2. What is recommended to secure barrel for removal/install of muzzle devices? Are there any MCX specific tools like a BEV block or reaction rod for these barrels? 3. Torque specs or any considerations in using the taper adapter or timing shims? 2. I have a SAC barrel vise that I’ve used to good effect. There are no reaction rods for the MCX to my knowledge. If you don’t want to go the barrel vise route, you should be able to pick up some soft jaws for a reasonable price. |
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NC, USA
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Posted: 5/8/2023 11:40:42 AM EDT
[#26]
Most people say to remove the barrel from the upper and clamp the gas block.
I’ll check the armorer’s manual Friday unless somebody comments first or if I forget. |
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Posted: 5/8/2023 5:17:01 PM EDT
[#27]
I personally would recommend against but you do you.
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Posted: 6/5/2023 10:34:26 PM EDT
[Last Edit: SMFdarkangel]
[#28]
@coregon Ordered an APP CALX kit last week, which was advertised as "chrome-lined". Barrel doesn’t look chrome-lined to me but hey, figured I'd ask the experts. Should be able to post some photos tomorrow but this is the P/N: WCALX-MCX-6B-300-TAP
 Attached File |
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Posted: 6/6/2023 9:29:57 AM EDT
[#29]
Quote HistoryOriginally Posted By SMFdarkangel: @coregon Ordered an APP CALX kit last week, which was advertised as "chrome-lined". Barrel doesn’t look chrome-lined to me but hey, figured I'd ask the experts. Should be able to post some photos tomorrow but this is the P/N: WCALX-MCX-6B-300-TAP https://www.ar15.com/media/mediaFiles/216696/IMG_7003_jpeg-2841697.JPG Where did you purchase? Advertised by who? Did you buy from SIG directly? Some of these barrels are CL, some aren't. It's really contract, etc dependent. |
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Posted: 6/7/2023 1:19:34 PM EDT
[Last Edit: SMFdarkangel]
[#30]
Quote HistoryOriginally Posted By coregon: Where did you purchase? Advertised by who? Did you buy from SIG directly? Some of these barrels are CL, some aren't. It's really contract, etc dependent. Roger. I bought it from Proven Arms & Outfitters. It was advertised as an LE/MIL WCALX kit with chrome-lined barrel. I’ve read your previous posts so I know chrome-lining is contract depended but when something’s advertised as X, you expect to get X and not Y. Sucks because I’ve heard nothing but good things about Proven Arms. Obviously not SIGs fault. On a positive note, it shipped with both an F01 and F03 valve, which is cool. I guess I need to decide whether I want to return it or not. |
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NC, USA
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Posted: 6/25/2023 6:57:00 AM EDT
[#31]
@coregon would it be possible to build an LVAW clone from a spear LT?
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NC, USA
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Posted: 6/25/2023 7:20:29 AM EDT
[#32]
Quote HistoryOriginally Posted By headlifeguard: @coregon would it be possible to build an LVAW clone from a spear LT? Perhaps a better question, has the LVAW been upgraded with the Spear-LT? |
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Posted: 6/25/2023 10:36:05 AM EDT
[Last Edit: coregon]
[#33]
Quote HistoryOriginally Posted By headlifeguard: @coregon would it be possible to build an LVAW clone from a spear LT? Quote HistoryOriginally Posted By headlifeguard: @coregon would it be possible to build an LVAW clone from a spear LT? Depends on exactly what you want to do, I guess. You can outfit a SPEAR-LT just like the Virtus TACOPS, just by adding the SD handguard. Which, is a great, commercial, representation of the LVAW. But, SPEAR-LT is still different than LVAW. Originally Posted By SpyHawk: Perhaps a better question, has the LVAW been upgraded with the Spear-LT? No. LVAW hasn’t been touched since its adoption. Rattler has supplanted LVAW for many mission sets. LVAW is still in many, many armories, but the rapid ability to evolve the MCX family has driven more advancements, more configurations, etc. Programs like SURG, RSAR, and others have really taken the original LVAW concept and divided those roles into their own contracts. |
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NC, USA
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Posted: 6/26/2023 7:31:28 AM EDT
[#34]
Quote HistoryOriginally Posted By coregon: Depends on exactly what you want to do, I guess. You can outfit a SPEAR-LT just like the Virtus TACOPS, just by adding the SD handguard. Which, is a great, commercial, representation of the LVAW. But, SPEAR-LT is still different than LVAW. No. LVAW hasn’t been touched since its adoption. Rattler has supplanted LVAW for many mission sets. LVAW is still in many, many armories, but the rapid ability to evolve the MCX family has driven more advancements, more configurations, etc. Programs like SURG, RSAR, and others have really taken the original LVAW concept and divided those roles into their own contracts. Very interesting. Thanks for the reply. |
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Posted: 8/12/2023 1:49:49 PM EDT
[#35]
Quote HistoryOriginally Posted By SMFdarkangel: @coregon Ordered an APP CALX kit last week, which was advertised as "chrome-lined". Barrel doesn’t look chrome-lined to me but hey, figured I'd ask the experts. Should be able to post some photos tomorrow but this is the P/N: WCALX-MCX-6B-300-TAP https://www.ar15.com/media/mediaFiles/216696/IMG_7003_jpeg-2841697.JPG @SMFdarkangel Did you ever figure out if your barrel was chrome lined? I was just thinking about buying one of these as a spare, and see the description still says they are chrome lined. |
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Posted: 8/12/2023 10:17:35 PM EDT
[#36]
Quote HistoryOriginally Posted By jwlaxton: @SMFdarkangel Did you ever figure out if your barrel was chrome lined? I was just thinking about buying one of these as a spare, and see the description still says they are chrome lined. I didn’t and I personally don’t think it is. All the chrome-lined barrels I own are easily identifiable. Some LE contract guns do have chrome-lined barrels, but not all. I think this is a just a case of lazy marketing from the retailer. |
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Posted: 8/12/2023 10:52:39 PM EDT
[#37]
Quote HistoryOriginally Posted By SMFdarkangel: Roger. I bought it from Proven Arms & Outfitters. It was advertised as an LE/MIL WCALX kit with chrome-lined barrel. I’ve read your previous posts so I know chrome-lining is contract depended but when something’s advertised as X, you expect to get X and not Y. Sucks because I’ve heard nothing but good things about Proven Arms. Obviously not SIGs fault. On a positive note, it shipped with both an F01 and F03 valve, which is cool. I guess I need to decide whether I want to return it or not. IIRC the APP stuff I got from Proven weren’t chrome lined. The APP barrels/uppers from Osage were. |
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Posted: 8/12/2023 11:12:18 PM EDT
[#38]
Quote HistoryOriginally Posted By Subpar: IIRC the APP stuff I got from Proven weren’t chrome lined. The APP barrels/uppers from Osage were. Roger. Thanks for the info. |
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Posted: 8/17/2023 5:37:23 PM EDT
[Last Edit: coregon]
[#39]
Quote HistoryOriginally Posted By SMFdarkangel: I didn’t and I personally don’t think it is. All the chrome-lined barrels I own are easily identifiable. Some LE contract guns do have chrome-lined barrels, but not all. I think this is a just a case of lazy marketing from the retailer. Quote HistoryOriginally Posted By SMFdarkangel: Originally Posted By jwlaxton: @SMFdarkangel Did you ever figure out if your barrel was chrome lined? I was just thinking about buying one of these as a spare, and see the description still says they are chrome lined. I didn’t and I personally don’t think it is. All the chrome-lined barrels I own are easily identifiable. Some LE contract guns do have chrome-lined barrels, but not all. I think this is a just a case of lazy marketing from the retailer. Sorry - I didnt get notified when you tagged me and just seeing this. It should be easily distinguishable if it's CL or not. I see you got it from a retailer, so im guessing/thinking they were confused on what they had and/or of the false understanding that ALL "MIL/LE" barrels are CL..? @SMFdarkangel |
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Posted: 8/17/2023 10:38:12 PM EDT
[#40]
Quote HistoryOriginally Posted By coregon: Sorry - I didnt get notified when you tagged me and just seeing this. It should be easily distinguishable if it's CL or not. I see you got it from a retailer, so im guessing/thinking they were confused on what they had and/or of the false understanding that ALL "MIL/LE" barrels are CL..? @SMFdarkangel 100% I'm sure that's all there was to it. 
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Posted: 9/7/2023 11:08:17 AM EDT
[Last Edit: Hungrydingo]
[#41]
Does anyone here know if a legacy gas valve will fit and function in a spear LT gas block? I don’t care if it will cycle or work with a particular cartridge, or barrel, just if the ports and geometry line up so it could potentially work.
Thanks |
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NC, USA
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Posted: 9/9/2023 10:40:32 AM EDT
[#42]
Quote HistoryOriginally Posted By Hungrydingo: Does anyone here know if a legacy gas valve will fit and function in a spear LT gas block? I don’t care if it will cycle or work with a particular cartridge, or barrel, just if the ports and geometry line up so it could potentially work. Thanks I can't say for certain, but I picked up a Virtus valve to test in my Legacy and it did not work out. I'm guessing the same is going to be true for the inverse with a Spear-Lt. |
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Posted: 9/9/2023 10:04:46 PM EDT
[#43]
Quote HistoryOriginally Posted By SpyHawk: Funny you mention that. They just released a new video on the 7.75" RSAR. This suggests to me there may be something coming soon.  The handguard is interesting. Very Spear. @Coregon are these turned down 9" Virtus-type barrels or specifically built on the spear "light" profile? |
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Posted: 9/9/2023 10:56:14 PM EDT
[#44]
Quote HistoryOriginally Posted By thumbbreak: https://www.ar15.com/media/mediaFiles/144187/img_7244-scaled-2948490.jpg The handguard is interesting. Very Spear. @Coregon are these turned down 9" Virtus-type barrels or specifically built on the spear "light" profile? Quote HistoryOriginally Posted By thumbbreak: Originally Posted By SpyHawk: Funny you mention that. They just released a new video on the 7.75" RSAR. This suggests to me there may be something coming soon. https://www.ar15.com/media/mediaFiles/144187/img_7244-scaled-2948490.jpg The handguard is interesting. Very Spear. @Coregon are these turned down 9" Virtus-type barrels or specifically built on the spear "light" profile? What you see in this picture, or seen in pre-production prototypes, would be different than anything (potentially) released on the commercial side. |
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GA, USA
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Posted: 10/5/2023 9:36:44 PM EDT
[Last Edit: Broomtreecoals]
[#45]
What would I need to do in order to get a 6.75” Virtus barrel on my rattler? Sig says that the rattler can not accept the 6.75” conversion kit. Is that simply due to the shorter op-rod of the rattler? If so that can be overcome right?
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TX, USA
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Posted: 10/5/2023 10:34:04 PM EDT
[#46]
Quote HistoryOriginally Posted By Broomtreecoals: What would I need to do in order to get a 6.75” Virtus barrel on my rattler? Sig says that the rattler can not accept the 6.75” conversion kit. Is that simply due to the shorter op-rod of the rattler? If so that can be overcome right? @Broomtreecoals Buy this Put that on your carrier and you'll be able to use the 6.75" Virtus barrel (or any Virtus barrel) in your Rattler receiver. |
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Posted: 10/6/2023 1:44:52 PM EDT
[Last Edit: SMFdarkangel]
[#47]
Quote HistoryOriginally Posted By Zerlak: @Broomtreecoals Buy this Put that on your carrier and you'll be able to use the 6.75" Virtus barrel (or any Virtus barrel) in your Rattler receiver. Correct. You can swap the op rod or just purchase the whole assembly, which is probably the easier option for most. https://www.reddit.com/r/MPX/comments/ssh58n/comment/hwylkjw/?utm_source=share&utm_medium=web2x&context=3 |
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GA, USA
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Posted: 10/7/2023 1:39:12 PM EDT
[#48]
Alright, thank you guys!
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NC, USA
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Posted: 10/8/2023 2:03:35 PM EDT
[#49]
OK, guys. Time to update the OP.
List of things to add: . New Rattler Lt (standard LT receiver, 6.75" 300blk, 7.75" 7.62x39 & 5.56x45). . Link to Virtus recoil assembly and partno. . Proper torque for handguard screws . Link to Arisaka handguard stabilizers What else? |
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GA, USA
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Posted: 10/11/2023 9:03:01 AM EDT
[#50]
Virtus Op-Rod part # : 2401316-R
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