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Posted: 8/14/2015 9:51:07 AM EDT
[#1]
Marvin Pitts does conversions of the original barrel, but he can also reprofile regular ar15 barrels. He makes the gas block and piston assembly in-house, independent of bushmaster.
The only parts you have to provide is the lock ring and handle assemblies, which you can purchase from bushmaster, though they're probably on backorder due to their move. There are efforts to replace the lock ring ratchet with a regular nut that can be tightened with a spanner wrench ala remington. |
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Posted: 8/14/2015 10:04:31 AM EDT
[#2]
Quote HistoryQuoted:
Marvin Pitts does conversions of the original barrel, but he can also reprofile regular ar15 barrels. He makes the gas block and piston assembly in-house, independent of bushmaster. The only parts you have to provide is the lock ring and handle assemblies, which you can purchase from bushmaster, though they're probably on backorder due to their move. There are efforts to replace the lock ring ratchet with a regular nut that can be tightened with a spanner wrench ala remington. I saw that. Requires a whole new trunnion, but the design looks far superior. So, basically, if I had an ACR wanted a new barrel assembly I buy an AR barrel of my choice and send it to him and he installs all his parts on it? What's the gas port issues involved? Having done firearms design testing, gas port size isn't a small part of the design. |
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Posted: 8/14/2015 11:10:11 AM EDT
[#3]
Contact Marvin at Nefarious Arms, and he can provide a spec sheet and price list for what's required to complete a barrel assembly. He's well known for his dimple work as well.
I don't know about the gas port, but Marvin knows his stuff. For a regular midlength, I think the gas hole is made smaller. He used to work for KAC I believe, and worked on the SR-47. |
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Posted: 8/15/2015 9:20:23 PM EDT
[#4]
Quote HistoryQuoted:
I saw that. Requires a whole new trunnion, but the design looks far superior. So, basically, if I had an ACR wanted a new barrel assembly I buy an AR barrel of my choice and send it to him and he installs all his parts on it? What's the gas port issues involved? Having done firearms design testing, gas port size isn't a small part of the design. Quote HistoryQuoted:
Quoted:
Marvin Pitts does conversions of the original barrel, but he can also reprofile regular ar15 barrels. He makes the gas block and piston assembly in-house, independent of bushmaster. The only parts you have to provide is the lock ring and handle assemblies, which you can purchase from bushmaster, though they're probably on backorder due to their move. There are efforts to replace the lock ring ratchet with a regular nut that can be tightened with a spanner wrench ala remington. I saw that. Requires a whole new trunnion, but the design looks far superior. So, basically, if I had an ACR wanted a new barrel assembly I buy an AR barrel of my choice and send it to him and he installs all his parts on it? What's the gas port issues involved? Having done firearms design testing, gas port size isn't a small part of the design. The ACR needs less gas than a comparable AR-15 with the same barrel size. So the best thing to do, if you are using an AR barrel, is buy a longer AR barrel with a smaller gas port. For example, I bought a 16" DD M4 barrel with carbine gas and had ADCO chop it to 10.5" on my ACR, but it uses the factory gas port size without needing enlargement and runs like a top. |
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Posted: 8/16/2015 1:20:14 AM EDT
[#5]
Just posting pics.
(ADCO slimmed and cut down my barrel a couple years ago.) 
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Posted: 8/16/2015 7:46:10 AM EDT
[#6]
What length and what dia. was the barrel reduced to?
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Posted: 8/16/2015 2:06:06 PM EDT
[#7]
The barrel is 14.5 inches (with permanently attached AAC blackout bringing it to 16), and it was turned down to just about 5/8 inch. Thanks!
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Posted: 8/16/2015 3:16:47 PM EDT
[#8]
Quote HistoryQuoted:
The barrel is 14.5 inches (with permanently attached AAC blackout bringing it to 16), and it was turned down to just about 5/8 inch. Thanks! Nice! That looks much better than factory and I assume balances better. Any idea how much weight got taken off the barrel? Sweet rifle man |
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Posted: 8/16/2015 3:57:08 PM EDT
[#9]
The more I look at ACR Forum, the cooler I think the ACR is. The only real issue is how long it's taking some parts to come to market, which is understandable.
So far, there are: Conversions for gas system length for bbl lengths Barrel conversions for any AR barrel Aftermarket gas system Charging handles Some aftermarket handguards (including small aftermarket runs and an apparently high quality copy of the Remington) In the works: Geiselle handguard Aluminum modular lower Trunion system to replace the QD bbl assembly with a Remington style bbl nut I'm starting to concede that the ACR may actually be the most adaptable non-AR rifle available. The only issue is that it's very much a hobby gun which requires a dedicated user and loads of money. Nefarious Arms is doing a great job with supporting the gun, but they're still a small shop. |
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Posted: 8/16/2015 4:20:22 PM EDT
[#10]
Adco too, for doing the recontour and pin/weld service. I just won a 14.5 in 1/7 twist factory ACR barrel on gunbroker, which I plan to send out to lighten up.
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Posted: 8/17/2015 12:00:10 AM EDT
[#11]
Quote HistoryQuoted:
The more I look at ACR Forum, the cooler I think the ACR is. The only real issue is how long it's taking some parts to come to market, which is understandable. So far, there are: Conversions for gas system length for bbl lengths Barrel conversions for any AR barrel Aftermarket gas system Charging handles Some aftermarket handguards (including small aftermarket runs and an apparently high quality copy of the Remington) In the works: Geiselle handguard Aluminum modular lower Trunion system to replace the QD bbl assembly with a Remington style bbl nut I'm starting to concede that the ACR may actually be the most adaptable non-AR rifle available. The only issue is that it's very much a hobby gun which requires a dedicated user and loads of money. Nefarious Arms is doing a great job with supporting the gun, but they're still a small shop. Welcome to the dark side! |
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Posted: 8/17/2015 9:25:54 AM EDT
[#12]
Here's a suggestion to the ACR crowd:
I know ACRForum is your hub. But if you want the platform to gain wider exposure, lobby for an ACR specific forum in the Armory section. This is the largest gun board in the world, with far and away the most activity. Most potential users have never heard of ACRForum*, so having a more high profile website with a dedicated section would be beneficial to spreading knowledge about the viability of the ACR. *Lots of others stay away from gun-specific boards because they tend to be circle jerking fan boy fests with little actual discussion. |
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Posted: 8/17/2015 10:07:01 AM EDT
[#13]
Too many people on here have an immature attitude about the rifle. A lot of members on ACRforum have already stated that they have no intent of making the move over here. Also, just because ARFCOM opens an ACR specific thread wouldn't really make the rifle grow in popularity, it would be a scaled down model of what ACRforum already offers.
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Posted: 8/17/2015 10:32:17 AM EDT
[#14]
Quote HistoryQuoted:
Too many people on here have an immature attitude about the rifle. Because all they know/see is the Bushmaster version and the lack of versatility A lot of members on ACRforum have already stated that they have no intent of making the move over here. You don't need to make "the move", they could easily compliment each other, especially given the free thinking there and the advertising rules here Also, just because ARFCOM opens an ACR specific thread wouldn't really make the rifle grow in popularity, it would be a scaled down model of what ACRforum already offers. Once again, it's not a replacement for the forum, and wouldn't/couldn't be. But it would allow many here to see the versatility of the system and allow the options to get more wide-spread visibility. I'm not suggesting trying to create an ACR subforum here to replace ACRForum. I'm saying that a dedicated ACR subforum would allow a wider base and visbility to those who might not know as much as the gun. The anti-ACR attitude exists in part because of the complete lack of knowledge about the platform. There's been renewed interest with the $1500 price point, and if you want the mainstream market to grow and support it, it needs more support and versatility than from just the dedicated hobbyist base. Right now, the ACRForum is dedicated and keeping it alive. But if you want KDG, Handl, and others to jump on the "hey Geisselle is supporting this thing" bandwagon you need more than just a smaller platform-dedicated forum. As long as it's well moderated, and the non-technical ACR-hate thread is squashed (as it should be in Tech) then you keep the stupid drive-by "FBM, FRD, long live Masada" stuff to a minimum. |
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Posted: 8/17/2015 11:09:20 AM EDT
[#15]
Quote HistoryQuoted:
I'm not suggesting trying to create an ACR subforum here to replace ACRForum. I'm saying that a dedicated ACR subforum would allow a wider base and visbility to those who might not know as much as the gun. The anti-ACR attitude exists in part because of the complete lack of knowledge about the platform. There's been renewed interest with the $1500 price point, and if you want the mainstream market to grow and support it, it needs more support and versatility than from just the dedicated hobbyist base. Right now, the ACRForum is dedicated and keeping it alive. But if you want KDG, Handl, and others to jump on the "hey Geisselle is supporting this thing" bandwagon you need more than just a smaller platform-dedicated forum. As long as it's well moderated, and the non-technical ACR-hate thread is squashed (as it should be in Tech) then you keep the stupid drive-by "FBM, FRD, long live Masada" stuff to a minimum. Quote HistoryQuoted:
Quoted:
Too many people on here have an immature attitude about the rifle. Because all they know/see is the Bushmaster version and the lack of versatility A lot of members on ACRforum have already stated that they have no intent of making the move over here. You don't need to make "the move", they could easily compliment each other, especially given the free thinking there and the advertising rules here Also, just because ARFCOM opens an ACR specific thread wouldn't really make the rifle grow in popularity, it would be a scaled down model of what ACRforum already offers. Once again, it's not a replacement for the forum, and wouldn't/couldn't be. But it would allow many here to see the versatility of the system and allow the options to get more wide-spread visibility. I'm not suggesting trying to create an ACR subforum here to replace ACRForum. I'm saying that a dedicated ACR subforum would allow a wider base and visbility to those who might not know as much as the gun. The anti-ACR attitude exists in part because of the complete lack of knowledge about the platform. There's been renewed interest with the $1500 price point, and if you want the mainstream market to grow and support it, it needs more support and versatility than from just the dedicated hobbyist base. Right now, the ACRForum is dedicated and keeping it alive. But if you want KDG, Handl, and others to jump on the "hey Geisselle is supporting this thing" bandwagon you need more than just a smaller platform-dedicated forum. As long as it's well moderated, and the non-technical ACR-hate thread is squashed (as it should be in Tech) then you keep the stupid drive-by "FBM, FRD, long live Masada" stuff to a minimum. I think you are spot on with your analysis, but I wonder if they would point to the 3 or 4 threads on the ACR and say there just isn't enough traffic. Chicken and egg though - there's no traffic because there's no safe place for it, and no safe place because the traffic doesn't warrant it. I am 100% in favor of this though! |
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Posted: 8/17/2015 11:17:49 AM EDT
[#16]
Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening.
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Posted: 8/17/2015 6:14:55 PM EDT
[#17]
Quote HistoryQuoted:
Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening. I didn't know IWC made a charging handle. Off to buy one. |
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Posted: 8/17/2015 8:44:16 PM EDT
[#18]
Quote HistoryQuoted:
I didn't know IWC made a charging handle. Off to buy one. Quote HistoryQuoted:
Quoted:
Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening. I didn't know IWC made a charging handle. Off to buy one. You now owe me a charging handle IWC! 
It's definitely an improvement over the stock one and doesn't have the bulk polymer that tends to rub or block on optics. |
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Posted: 8/17/2015 9:43:09 PM EDT
[#19]
Quote HistoryQuoted:
I didn't know IWC made a charging handle. Off to buy one. Quote HistoryQuoted:
Quoted:
Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening. I didn't know IWC made a charging handle. Off to buy one. I've had one for quite a while now. For me, it's not much of an improvement on the factory one (and I'm a big IWC fan, obviously). I'd really like a slightly extended one. It seems I'm always knocking my knuckles on whatever optic mount happens to be in the way. 
ADCO turned the barrel down to the diameter of the "M4 notch", BE Meyers surefire mount/flash hider silver soldered on. 
I didn't want to mess with the new gas regulator plug, so I threaded the vent, and installed a set screw I drilled out for gas regulation. It's run 100% suppressed or not since then. 
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Posted: 8/17/2015 9:52:54 PM EDT
[#20]
Quote HistoryQuoted:
I've had one for quite a while now. For me, it's not much of an improvement on the factory one (and I'm a big IWC fan, obviously). I'd really like a slightly extended one. It seems I'm always knocking my knuckles on whatever optic mount happens to be in the way. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0051_zpsq4lll0pl.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0051_zpsq4lll0pl.jpg</a> ADCO turned the barrel down to the diameter of the "M4 notch", BE Meyers surefire mount/flash hider silver soldered on. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0056_zps9uhsyhfw.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0056_zps9uhsyhfw.jpg</a> I didn't want to mess with the new gas regulator plug, so I threaded the vent, and installed a set screw I drilled out for gas regulation. It's run 100% suppressed or not since then. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0057_zpsfxgmt06k.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0057_zpsfxgmt06k.jpg</a> <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0055_zps0prj1pwz.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0055_zps0prj1pwz.jpg</a> Quote HistoryQuoted:
Quoted:
Quoted:
Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening. I didn't know IWC made a charging handle. Off to buy one. I've had one for quite a while now. For me, it's not much of an improvement on the factory one (and I'm a big IWC fan, obviously). I'd really like a slightly extended one. It seems I'm always knocking my knuckles on whatever optic mount happens to be in the way. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0051_zpsq4lll0pl.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0051_zpsq4lll0pl.jpg</a> ADCO turned the barrel down to the diameter of the "M4 notch", BE Meyers surefire mount/flash hider silver soldered on. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0056_zps9uhsyhfw.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0056_zps9uhsyhfw.jpg</a> I didn't want to mess with the new gas regulator plug, so I threaded the vent, and installed a set screw I drilled out for gas regulation. It's run 100% suppressed or not since then. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0057_zpsfxgmt06k.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0057_zpsfxgmt06k.jpg</a> <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0055_zps0prj1pwz.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0055_zps0prj1pwz.jpg</a> Can you explain why you had to change the gas system ? I have a barrel needing the same mods to save weight. |
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Posted: 8/17/2015 10:10:35 PM EDT
[#21]
Quote HistoryQuoted:
Can you explain why you had to change the gas system ? I have a barrel needing the same mods to save weight. Quote HistoryQuoted:
Quoted:
Quoted:
Quoted:
Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening. I didn't know IWC made a charging handle. Off to buy one. I've had one for quite a while now. For me, it's not much of an improvement on the factory one (and I'm a big IWC fan, obviously). I'd really like a slightly extended one. It seems I'm always knocking my knuckles on whatever optic mount happens to be in the way. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0051_zpsq4lll0pl.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0051_zpsq4lll0pl.jpg</a> ADCO turned the barrel down to the diameter of the "M4 notch", BE Meyers surefire mount/flash hider silver soldered on. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0056_zps9uhsyhfw.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0056_zps9uhsyhfw.jpg</a> I didn't want to mess with the new gas regulator plug, so I threaded the vent, and installed a set screw I drilled out for gas regulation. It's run 100% suppressed or not since then. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0057_zpsfxgmt06k.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0057_zpsfxgmt06k.jpg</a> <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0055_zps0prj1pwz.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0055_zps0prj1pwz.jpg</a> Can you explain why you had to change the gas system ? I have a barrel needing the same mods to save weight. With the factory gas plug, it would sometimes short stroke suppressed. It's my understanding the improved gas regulator fixed that, but it was easier for me to just "adjust" it myself. I could send it in, but it's been fine for thousands of rounds as it is now. |
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Posted: 8/17/2015 10:44:47 PM EDT
[#22]
Quote HistoryQuoted:
With the factory gas plug, it would sometimes short stroke suppressed. It's my understanding the improved gas regulator fixed that, but it was easier for me to just "adjust" it myself. I could send it in, but it's been fine for thousands of rounds as it is now. Quote HistoryQuoted:
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Quoted:
Quoted:
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Don't think I haven't tried. I reached out to several companies and was met with much resistance (even from Magpul). Most of my threads are long gone but I asked Bill in a personal email in the past and was told no. I suggested to IWC if they would modify their SCAR charging handle but he didn't update his thread and later announced it on ACRforum instead. It was a real kick in the balls for me but it was a small victory for the ACR. It would be nice to see an ACR section on here but it takes a collective effort and I just don't see it happening. I didn't know IWC made a charging handle. Off to buy one. I've had one for quite a while now. For me, it's not much of an improvement on the factory one (and I'm a big IWC fan, obviously). I'd really like a slightly extended one. It seems I'm always knocking my knuckles on whatever optic mount happens to be in the way. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0051_zpsq4lll0pl.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0051_zpsq4lll0pl.jpg</a> ADCO turned the barrel down to the diameter of the "M4 notch", BE Meyers surefire mount/flash hider silver soldered on. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0056_zps9uhsyhfw.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0056_zps9uhsyhfw.jpg</a> I didn't want to mess with the new gas regulator plug, so I threaded the vent, and installed a set screw I drilled out for gas regulation. It's run 100% suppressed or not since then. <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0057_zpsfxgmt06k.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0057_zpsfxgmt06k.jpg</a> <a href="http://s21.photobucket.com/user/nimslow/media/11-25-14/DSC_0055_zps0prj1pwz.jpg.html" target="_blank">http://i21.photobucket.com/albums/b299/nimslow/11-25-14/DSC_0055_zps0prj1pwz.jpg</a> Can you explain why you had to change the gas system ? I have a barrel needing the same mods to save weight. With the factory gas plug, it would sometimes short stroke suppressed. It's my understanding the improved gas regulator fixed that, but it was easier for me to just "adjust" it myself. I could send it in, but it's been fine for thousands of rounds as it is now. Thanks for the explanation I'm having issues along the same line. |
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Posted: 8/21/2015 12:12:47 AM EDT
[#23]
With a full reprofiled and shortening you can take 8ozs off - adco does it for 205, Randal at ar15barrels does it for 145 and nefarious charges 400 all of them do the same quality work
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Posted: 8/23/2015 4:02:31 PM EDT
[#24]
BTW the stock charging handle not only flips upside down and sides, but you can hammer out the roll pin and change the facing, or like I do hammer the lever flat which extends it slightly and moves it away from optics and the upper receiver.
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Posted: 8/25/2015 1:21:24 AM EDT
[#25]
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Posted: 8/31/2015 8:01:14 PM EDT
[#26]
Quote HistoryQuoted:
BTW the stock charging handle not only flips upside down and sides, but you can hammer out the roll pin and change the facing, or like I do hammer the lever flat which extends it slightly and moves it away from optics and the upper receiver. Good to know. I don't like the droopy charging handle, but it doesn't bother me enough to go pay for a replacement. |
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Posted: 9/1/2015 10:46:35 PM EDT
[#27]
Only 27 rounds through it so far but I do love it ! |
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Posted: 9/7/2015 6:26:07 PM EDT
[#28]
How much is ADCO charging you guys to turn the barrels down? I am thinking very hard about getting an ACR now that Buds has them at $1500 + make an offer.
Also has anyone figured out a way to do away with the rachet on the barrel yet to loose some weight? |
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Posted: 9/7/2015 8:35:51 PM EDT
[#29]
Quote HistoryQuoted:
How much is ADCO charging you guys to turn the barrels down? I am thinking very hard about getting an ACR now that Buds has them at $1500 + make an offer. Also has anyone figured out a way to do away with the rachet on the barrel yet to loose some weight? They will go $1485 on the make an offer. |
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Posted: 9/7/2015 8:44:09 PM EDT
[#30]
Can we compare weights of a fully reprofiled 16" or at least 14.5" against a simple chop to 10.x"?
It appears you'll be at similar weights and similar price (10.5" with a stamp vs profiled and pinned 14.5") Kinda sorta? |
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Posted: 9/21/2015 8:19:29 AM EDT
[#31]
DD carbine 1:7 cut to 14.5 and reprofiled by Marvin.
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Posted: 9/22/2015 1:06:15 AM EDT
[#32]
I still want one
  With that said, it's a shame Marvin has become Grey Guns, virtually, that you can probably file a form 1, get the stamp back, then file a form 4 for a suppressor and still not have your "work" completed. Marvin/Nefarious Arms, does great work, along with Grey Guns (H&K lover here) but holy shit, the wait list..... I don't think the ACR in stock form, is for me. But with Marvin's touches, it could definitely be right up my alley. |
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Posted: 9/23/2015 11:03:29 AM EDT
[#33]
Shot one of my ACRs this last weekend. Put a few hundred rounds through it with no problems. It's currently my favorite rifle. Looking to have the barrel reprofile, cut to 14.5" by ar15barrels.com.
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Posted: 9/23/2015 5:06:05 PM EDT
[#34]
Quote HistoryQuoted:
Can we compare weights of a fully reprofiled 16" or at least 14.5" against a simple chop to 10.x"? It appears you'll be at similar weights and similar price (10.5" with a stamp vs profiled and pinned 14.5") Kinda sorta? To me it's more a balance issue (I have a 10.5" ACR). I don't like going any lighter than govt profile under the handguard, so a 10.5" will always be lighter than a 14.5". Additionally the weight will be closer to your support hand which is important on a rifle as nose-heavy as the ACR. Hell, mine is STILL nose-heavy and overweight after the chop. But I like the rifle very much. |
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Posted: 9/23/2015 5:40:45 PM EDT
[#35]
Quote HistoryQuoted: I still want one With that said, it's a shame Marvin has become Grey Guns, virtually, that you can probably file a form 1, get the stamp back, then file a form 4 for a suppressor and still not have your "work" completed. Marvin/Nefarious Arms, does great work, along with Grey Guns (H&K lover here) but holy shit, the wait list..... I don't think the ACR in stock form, is for me. But with Marvin's touches, it could definitely be right up my alley. What work are you wanting done? Many places can do ACR barrel work. |
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Posted: 11/17/2015 2:56:06 AM EDT
[#36]
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Posted: 11/17/2015 1:42:06 PM EDT
[#37]
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Posted: 11/18/2015 12:17:06 AM EDT
[#38]
Quote HistoryThat rail, oh that rail. Nice, but I can't cough up that for my ACR yet... |
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Posted: 11/21/2015 2:58:00 AM EDT
[#39]
Quote HistoryQuoted:
That rail, oh that rail. Nice, but I can't cough up that for my ACR yet... Quote HistoryQuoted:
That rail, oh that rail. Nice, but I can't cough up that for my ACR yet... Who makes that handguard and what is the mounting system on it? |
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Posted: 11/21/2015 4:12:57 AM EDT
[#40]
Nexus Tactical. Expensive though at $450.
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Posted: 11/23/2015 11:35:32 AM EDT
[#41]
I liked mine but my barrel ratchet/nut kept jumping teeth so my zero would shift. I sent it for repair. I decided I would never remove the barrel as I felt maybe it was from wear even though I rarely touched the ratchet. Well after about 750 rds I noticed my zero had shifted some and I had marked the ratchet so I would know if it had moved and it had jumped a couple of teeth. I sold my ACR and got a SCAR.
IMHO the ratchet is a weak link. I would consider another one if the civilian version used something else. This was years ago so maybe they do now I don't know. |
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Posted: 11/23/2015 12:22:43 PM EDT
[#42]
Any links to $1200 new ACRs?
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Posted: 11/23/2015 8:15:44 PM EDT
[#43]
Quote HistoryWho makes that stock ? Is that where the weight loss came from ? |
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Posted: 11/24/2015 1:00:42 PM EDT
[#44]
Quote HistoryQuoted:
Who makes that stock ? It looks like Battle Arms Development's minimalist stock. |
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Posted: 11/24/2015 4:43:33 PM EDT
[#45]
The stock is the Battle Arms sabertube on a argonauts m4 adapter it weighs 8oz or 1/2 pound less than factory - the barrel has been shortened and re-profiled by adco which removes another 8oz or 1/2 pound - the hand guard is 6 oz less than standard and uses M-Lok, the bolt has had had 5 oz removed as well.
Unfortunately Nexus Tactical is not a manufacturer himself and only one company that works with this type of carbon polymer would do it made to order - with the ceramic paint coating his profit margin is very slim. For the customer they get a piece thats lighter and cheaper than the 5 oz magnesium RemDef version that commonly goes for over 700 if you can find them and the material means it's also very strong but doesn't get hot that I have seen, for people runing suppressors or high volume fire this is worth the cost IMO. total for my rifle is less than they are going for new some places when you factor in the resale of factory parts. http://www.nexustacticalllc.com/ Beyond this you can go 4 inches shorter on the barrel and run Marvin Pitts gas system to save around 1/2 pound also more can be removed from the bolt, and there is a place to replace the QD trunion with something lighter weight fixed like an ar15 which should cut another 1/4 pound - On mine I have toyed with removing most of the top pica-tiny rails all together to narrow the grip and save weight. |
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Posted: 11/24/2015 5:05:42 PM EDT
[#46]
lots of ACR hate on the first several pages..
the one we have shoots great and is pretty easy to wield.. best thing about it is that when you SBR it, you can use a brand instead of paying someone to engrave it. |
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Posted: 11/24/2015 5:24:20 PM EDT
[#47]
Quote HistoryQuoted: lots of ACR hate on the first several pages.. the one we have shoots great and is pretty easy to wield.. best thing about it is that when you SBR it, you can use a brand instead of paying someone to engrave it. Maybe I am totally misreading what you're saying but the ACR's receiver (aka the weapon aka the part that should be engraved, assuming you aren't doing the barrel) is made of aluminum. I racking my brain to think of a way you can brand aluminum... |
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Posted: 11/24/2015 8:32:49 PM EDT
[#48]
Quote HistoryQuoted:
lots of ACR hate on the first several pages.. the one we have shoots great and is pretty easy to wield.. best thing about it is that when you SBR it, you can use a brand instead of paying someone to engrave it. I need to see this ! |
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Posted: 11/25/2015 12:59:16 AM EDT
[#49]
Quote HistoryQuoted:
lots of ACR hate on the first several pages.. the one we have shoots great and is pretty easy to wield.. best thing about it is that when you SBR it, you can use a brand instead of paying someone to engrave it. You can brand aluminum? Lol cause the upper is the part you register and that can be done for 10 bux at a trophy shop professionally instead of melting something half ass. |
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Posted: 11/25/2015 6:51:39 AM EDT
[#50]
Quote HistoryQuoted:
You can brand aluminum? Lol cause the upper is the part you register and that can be done for 10 bux at a trophy shop professionally instead of melting something half ass. Quote HistoryQuoted:
You can brand aluminum? Lol cause the upper is the part you register and that can be done for 10 bux at a trophy shop professionally instead of melting something half ass. Quoted:
uhhhh... Maybe I am totally misreading what you're saying but the ACR's receiver (aka the weapon aka the part that should be engraved, assuming you aren't doing the barrel) is made of aluminum. I racking my brain to think of a way you can brand aluminum... you're right, wasn't thinking.. long day. |
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