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barrel

  1. Trading Post
    Selling my Nefarious Arms built 6.8 SPC II conversion barrel set. I hardly used it. Comes with an AAC 51T flash hider and extra gas regulator with some other smaller parts. I'm located in central Oregon and can arrange a meet up if reasonably close. Selling to fund an AR10 build. $700 plus...
  2. THE RULES and MORE!!!
    Hey guys, Not sure where on the forum to put this. Picked up my brand new ACR DMR last night. I wanted to use a polymer handguard instead of the tri-rail the rifle came with, but the thicker barrel profile of the 18.5" means that the polymer handguard won't fit. If anyone has a 1/7 twist...
  3. Trading Post
    I'm going the Bigdog route on a shorter barrel so my old barrel is up for sale. I'd estimate the total round count at under 600. I'm stripping the gas system parts off, but I'll include the A2 birdcage and the lock ring handle and shim. I can add pictures if needed, but there aren't really any...
  4. NFA Only Trading Zone
    Looking for a 10.5 or 12.5 ACR barrel, if it has a AAC 51T break on the end, even better! Please email or reply to the post for any offerings, I will check the email more than the forum, thank you! Pete [email protected]
  5. ACR General Discussion
    So I've decided to have my ACR brought down to a 14.5 pinned barrel. My main reason is to better balance the gun without costing a fortune... The question is... Should I have the OEM barrel cut and flutted? or should I buy a totally new barrel? and if so, what's a good one...
  6. ACR Technical Discussion
    Yesterday, i finally got my barrel back from MOD1 Firearms out of Lexington, KY. This was my experience, and from what i have heard, it is unique.. On 31 March, i had an appointment with Pike, the owner, and we discussed briefly what i wanted done. I wanted the barrel cut to the point where the...
  7. Suppressors
    I just emailed adco to get the process started of getting my 5.56 barrel cut and pinned. Can i get some pics of various muzzle devices that you guys chose to pin to your rifles. I am especially debating between the Breakout 2.0 in case i ever get my AAC suppressor and the YHM Phantom 5C2 for...
  8. Trading Post
    I have the stock 16.5in barrel assembly off of a basic ACR for sale. This includes the flash hider, lock ring, and all gas system components. Sold as shown in pictures. $350 SHIPPED
  9. ACR Technical Discussion
    My employee/trainee gunsmith and I are having a little argument about cutting down my barrel on my personal ACR from 16 inch to 14.5 then pinning the flashhider so no form 1 is involved. Now after the barrel is cut and threaded, is it necessary to increase the port hole in the barrel and if...
  10. ACR Technical Discussion
    Guys, I got a new black ACR enhanced with about 500 rounds through it never cleaned. When I go to disassemble the rifle for the first time I remove the barrel nut using the lever and the barrel will not come out. I tried pulling on it as hard as I can and still nothing, then I tried with gun...
  11. ACR Technical Discussion
    Let me just start by saying that this is the first time I post a new thread on this forum and my ACR is the first firearm I've ever purchased/owned. Going to the range maybe 2-3 times a year with my buddys and their rifles/handguns/shotguns is the extent of my experience with firearms up to now...
  12. ACR Technical Discussion
    I recently received my ACR back from Bushmaster for warranty work related to a recall. I was shooting with it today after having removed and replaced my barrel and the bolt would not engage the barrel. Checking I noticed the barrel was not aligned properly though the locking lever was tightened...
  13. ACR Technical Discussion
    I'm considering buying an ACR and I'm in the research stage of buying one. Then a strange question popped into my head. How stable is that trunnion? Has anybody heard of it coming loose? Is it held in by 4 screws? And also, will my barrel change POI(assuming it's torqued correctly) if it gets...
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