mharris Posted January 11, 2013 Report Share Posted January 11, 2013 Ok, I purchased a 18.5 inch SS 1/10 twist Fulton barrel for my sons dpms 308. He got it for xmas. I need to send it to someone here locally to check the head space. My question is this. What parts do I need to affix the barrel to the reciever? Is it just a locking nut? I also got him a JP muzzle break and I kind of have the same question. I have been reading about crush washers, shims, etc and I want the best and safest way to get this done. Thx guys. Quote Link to comment Share on other sites More sharing options...
98Z5V Posted January 11, 2013 Report Share Posted January 11, 2013 You'll need a barrel nut to affix ot to the upper receiver. If you're running some kind of rail assembly or free-float handguard, they usually come with their own barrel nut.For the muzzel device, crush washer, peel washer, they both work. Crush washer is most-of-the-time easier. make sure it's for a .308 AR, and not the 5.56 AR-15 piece. Quote Link to comment Share on other sites More sharing options...
mharris Posted January 11, 2013 Author Report Share Posted January 11, 2013 Thanks for the info. the jp is a 308 5/8 x24? i think. Nice looking piece. He just ordered the free float High 4 free float rail. WE are trying to get this done before Obama becomes the dictator he wants to be. Quote Link to comment Share on other sites More sharing options...
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