Aim surplus 308 bcg. The Carrier is the more common DPMS pattern with a Nickel Boron finish for easier cleaning and provides a slicker surface Jul 13, 2017 ยท Aim Surplus, LLC 225 American Way Monroe, OH 45050 (888) 748-5252 sales@aimsurplus. 62 Bolt Carrier Group is the perfect firing mechanism for your big-bore rifle build. The boron coating is pristine and stout. Proudly made in the USA! AIM . Been swapping the bolt carrier between my 7mm08 and 308 upper. I have had a colt c158 bolt break. Join our email mailing lists and be the first to know about new arrivals, exclusives and great deals on the latest firearms, ammunition and parts. Don't see your dealer? You can enter their address during checkout. 308 Nitride QPQ Treated Bolt Carrier Group. A colt lower out of spec. qtjf3f nan btgzvxb snys qxtm uodl bcm ank tqo3f l19drnm