USA Made .223/5.56/300 BLK Bolt Carrier Group- Diamond (DLC)

Features:

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