TR Enabling Obsidian AR-15 Bolt Carrier Group

A review and range demo of the TR Enabling Obsidian AR-15 Bolt Carrier Group.

TR Enabling Obsidian AR-15 Bolt Carrier Group:

  • Specs (Coating):
    • Coefficient of Friction: .06
    • Rockwell Hardness: RC70
    • Thickness: .0005”
    • Application Method: Electro-less Plating
    • Color: Graphite
    • Composition: Nickel based coating impregnated with Teflon
  • Specs (Assembly):
    • Carrier Material: 8620 alloy steel
    • Bolt Material: Carpenter 158, MPI
    • Extractor: M-16 Extractor, Auto Spring, Buffer and O-ringed
    • Gas Key: Machined Billet Steel, Staked to Spec
    • One Piece Gas Ring