Premium Nitride 5.56 Bolt Carrier Group w/ Enhanced Angle Cut

  • Sale
  • $89.99
  • Regular price $129.99


  • Complete M16 bolt carrier group assembly
  • The QPQ nitride/melonite treatment hardends the surface to 70 RC and reduces friction as well as adding corrosion resistance inside and out
  • Superior to chrome lined and parkerized bolt carrier groups
  • MPI tested and marked. 9310 bolt nitride/melonite treated with additional cryo freeze for extra strength
  • Requires very little lubrication and has a very slick surface
  • Corrosion resistance inside and out
  • Side staked gas key with grade 8 fasteners