AIM Nitride Bolt Carrier Group 5.56/.223 MPI

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$99.95

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Info

Description

Features
Shot peened, MPI (Magnetic Particle Inspected), 9310 Tool Steel Bolt; 8620 M16 carrier, Properly staked 4140 Machined Gas Key fastened with Hardened Grade 8 Fasteners. Extractor includes crane o-ring. 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
  • Ground to meet military required tolerances
  • 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
  • Ground to meet military required tolerances