308 AR10 NIB Nickle Boron Bolt Carrier Group .308
VERY HARD TO COME BY LATELY, GET THEM WHILE YOU CAN
Complete mil-spec fully NIB AR-10 bolt carrier group has the quality & durability NIB IS notorious for durability at an incredible value. This precision-made BCG comes fully assembled and ready to drop in your AR-10
Caliber: .308 Mil-Spec Made in the USA
9310 steel, MPI tested, case-hardened, nickel-boron coated
8626 steel, staked with original Colt Mil-Spec screws, heat-treated,
nickel-boron coated, full-auto rated
Original Colt Mil-Spec screws, staked, nickel-boron coated
Heat-treated, dual nested extractor springs exceeding Mil-Spec, nickel-boron
Heat-treated, nickel-boron coated
Complete Match Grade DPMS Pattern nickel boron coated .308 bolt and carrier that will work in DPMS pattern upper receivers.
NIB finish makes clean up easy, and they make a world of difference.