Description
AR-15 9310 Bolt Assembly – Black NitrideMade from 9310 Steel which has a high core hardness and high fatigue strength unlike standard Hot/cold rolled 9310 steels. This is aMil-Spec bolt assembly with enhanced featuresfor those looking to complete a bolt carrier group. This bolt will make sure your gun outshines the competitionFeaturesFully Assembled BoltShot PeenedMPI (Magnetic Particle Inspected)HPT (High Pressure Tested)Power Spring KitNitride QPQ TreatedEngraved with MPI/9310
