Titanium Nitride bolt carrier groups (aka TiN BCG) are engineered and coated to meet or exceed MIL-SPEC requirements. This will work with well with your .223, 5.56, or 300 Blackout AR15 / M4 / M16 rifles or pistols.

Full specs:
Works with .223, 5.56 NATO, and 300 AAC Blackout calibers
Bolt Carriers are made from 8620 steel
Keys are made from 4130 steel and staked to government specs
Bolts are made from 9310 steel
Extractor with spring and O-ring
Firing pin
Cam pin
Full auto rated carrier (compatible with both full-auto and semi-auto rifles)
Serrations on right side
For right handed, gas operated M16, M4, or AR15 rifles and pistols
MPI (Magnetic Particle Inspected)
Weight: 11.5 oz.
Coating: Titanium Nitride (TiN)

MADE IN USA | MADE AND COATED IN NORTH CAROLINA