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NextGenAR

Bolt Carrier Group - 5.56 & .223 - Black Nitirde

$100.00

BCG-223-556

This .223/5.56 Bolt Carrier Group is proudly made to Mil-Spec tolerances in the U.S.A.

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