AR-15 / M-16 Bolt Carrier Group

Description

These are high grade Bolt Carrier Groups Made in USA.

Specifications and Features

• Nitride Finished by H&M Inc
• 9310 Steel, MPI (Magnetic Particle Inspected) Bolt, Ground per True Mil Spec Specs
• 8620 Carrier (M16 full shroud) Heat Treated, Case Hardened Steel, Ground after Heat treat to Mil Spec Specs,
• Billet Gas Key Hardened to USGI Specifications
• 17-4 H900 Stainless steel Firing pin
• Grade 8 Hardened Fasteners
• Gas Key Staked Per Mil-Spec
• Tool Steel Extractor