Bolt Carriers & Internals

Bolt carrier groups, buffers, springs, charging handles, gas blocks and the small parts that make an AR run: Bravo Company, Ballistic Advantage, Faxon, Radian, Battle Arms, Rise Armament and Breek. Full-auto profile BCGs, lightweight and nickel boron carriers, adjustable gas blocks, and complete lower parts kits.
Non-serialized, ships to your door. A BCG is the one part of an AR where buying cheap costs you the whole rifle, so we stock the makers with a track record. If you are building from a stripped upper, our MOD 4 handguard guide lists what else finishes the upper and links each part.