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.
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

