USA MADE .223/5.56/300 BLK Bolt Carrier Group - Nitride

  • $68.99
  • Availability:In Stock
  • Product Code: GG712
This product has a minimum quantity of 10


AR-15 .223/5.56 Bolt Carrier Group- Black Nitride (Made in USA)
Carrier
    M16 style (Auto)
    Machined from 8620 tool steel
    Heat treated to military specifications
Bolt
    Machined from 9310 tool steel
    Heat treated to military specifications
    Shot Peened
    MPI (Mag Particle Inspected)
Gas Key
    Machined from 4140
    Heat treated to military specifications
Extractor
    Machined from 4140
    Heat treated to military specifications
    Shot peened
Firing Pin
    Machined from 8640 tool steel
    Heat treated to military specifications
    Ground to meet military required tolerances
    Coated with .0002”-.0003” of hard chrome per MIL-STD-171 1.2.2.2
Cam Pin
    Machined from 4340
    Quench and temper heat treat



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