Description

The FailZero Basic Semi-Auto Kit provides a bolt carrier group and hammer treated with FailZero’s proprietary nickel boron EXO coating.

  • Part Type: Bolt Carrier Group & Hammer Set
  • Compatible Firearms: AR-15 / M16 semi-automatic rifles
  • Material: Steel with nickel boron EXO coating
  • Finish: FailZero EXO nickel boron
  • Installation: Drop-in (basic AR-15 knowledge recommended)
  • Includes: Bolt carrier group, hammer