PSA 5.56 Phosphate MPI Full-Auto Bolt Carrier Group
Palmetto State Armory
$104.99
PSA 5.56 phosphate bolt carrier group featuring a Carpenter 158 steel bolt, phosphate finish, full-auto profile, and properly staked gas key with grade 8 hardened fasteners. The bolt is magnetic particle inspected for reliable performance in AR-15 and M16-style rifles.