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Coated bolt carrier group (full auto version) for AR15, M16, or M4 machined from Mil-Spec 8620 aircraft quality steel with shrouded firing pin and Mil-Spec chrome lined interior. BCG includes the proper chrome lined and heat treated gas key. Gas key is secured to carrier with Grade 8 fasteners and properly staked per Mil-Specs. This ensures a strong staking and proper gas system functioning. The bolt assembly is CNC machined from Mil-Spec Carpenter No. 158 steel and shot peened for increased strength per Mil-Spec; includes tool steel extractor with spring and viton O-ring; firing pin chromed finished with firing pin retaining pin and cam pin.![]()
HPT (High Pressure Batch Tested) and MPI (Magnetic Particle Inspected).
| Manufacturer: | Cryptic |
| Finish: | Chrome |
| Fabric/Material: | 8620 Aircraft Quality Steel |
| Caliber: | 6.5mm Creedmoor |
| Gun Make: | AR Platform |
| Gun Model: | M16, M4, AR-15 |
| Weight: | 17.8 oz |