Description
Each of our Mil-Spec Bolt Carrier Group Assemblies is made in the U.S.A. and feature full-auto capability, a shot peened MPI Bolt, 8620 Gas Carrier and Gas Key fastened with hardened Grade 8 fasteners. The ultra-hard and corrosion-resistant Black Nitride ensures this BCG's continued reliability and precision.
Features:
- Nitride Finished 9310 Steel
- MPI (Magnetic Particle Inspected) Bolt 5.56/.223
- Ground per True Mil Spec Specs
- 8620 Carrier (M16 full shroud) Heat Treated
- Case Hardened Steel
- Ground after Heat treat to MIl Spec
- Gas Key Hardened to USGI Specifications
- 17-4 H900 Stainless steel Firing pin
- Grade 8 Hardened Fasteners
- Gas Key Staked Per Mil-Spec
- Billet Steel Extractor
- Weight: 11.456 oz
