Brand Palmetto State Armory
Model Number 51655115274
Bolt Finish: Nitride
Bolt Steel: Carpenter No. 158 Steel
Profile: Full Auto Profile
Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec
This Toolcraft Logo'd Nitride BCG is made with a carpenter 158 bolt with a full-auto profile, designed to be used in AR-15 & M-16 style rifles. Bolt is magnetic particle inspected (MPI) for a uniform quality and operational reliability.