Toolcraft .223/5.56/300 BLK M16 C158 Profile Bolt Carrier Group - P51 (Polished DLC)

This Toolcraft P51+ Polished DLC 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. Time for the good stuff. When we talk about benefits, P51+ leads that pack. These bar-setting benefits are what make P51+ the crowd favorite when it comes to DLC coatings. Increased Hardness Super-low Friction Chemically Inert Corrosion Resistant Bolt Material: C158 O-Ring: Mil-Spec Gas Rings: Mil-Spec (3) Cam Pin Material: 8620 Steel Firing Pin Material: 416 Stainless Steel Other: MPI Inspected Profile: Full Auto Profile Gas Key: Grade 8 Hardened Fasteners, Staked per MilSpec Manufacturer: Toolcraft Caliber: 5.56/.223