USA MADE -Bolt Carrier Group - Diamond (DLC) - $117.99 (Free Shipping)

Description

AR-15 .223/5.56 Bolt Carrier Group- DIAMOND (DLC) (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