Complete Black Nitride AR-15 / M-16 Bolt Carrier Group
For Full Auto or Semi Auto
We have run these dry in Full Autos, and they keep on going! An amazing product. Upgrade your defense weapon or just have a back up.
Finish: BLACK NITRIDE: Much more than typical Parkerizing, phosphating or black oxide, Blacknitriding℠ is a thermal chemical diffusion of nitrogen and carbon into the surface of the steel. These high performance parts have increased wear-resistance, fatigue strength, corrosion resistance, lubricity and cosmetic appeal.