- Durability
- Lubricity
- Corrosive Resistance
- Carbon Resistance
- Extreme Metal hardness 85-90 Rockwell
Caliber / Gauge .223/.223 Wylde/300acc blackout/5.56 NATO
Carrier Style mil-spec
Platform AR15
Bolt Finish Parkerized
Bolt Material 9310 Steel
Carrier Finish Black Nitride
Gas Key Staked
Magnetic Particle Inspection Yes
Combat Armory machinist take pride in delivering the very best for our customers used by Military, Police, and Firearms enthusiasts