AR-15 7.62x39 Melonite QPQ Bolt Assembly

I've been running this bolt on my build since it was direct gas impingement, I've since had the upper swapped to the caps carbine system, and this bolt, and also the BRA extractor, conversion itself, and the bolt have never missed a beat, feeding, firing, and extracting everything from surplus to hand loads with no hiccups, no cracks, no signs of corrosion, and nothing even resembling hurt feelings on the black rifle arms parts. Unreal precision, performance, accuracy and durability. This bolt is hard as a rock, smooth as fresh glass, and evenly and darkly covered in Melonite, what more could you ever want from a bolt? Oh, and the cases fit the perfectly machines bolt face wonderfully because the diameter is spot on, making the whole firing sequence seamless, cases fly out of this thing like birds from a shook tree, clearing the ejection port without a moment of hesitation. Never so much as a clink off the brass deflector.

Just got my bolt in today. Visual inspection looks good. Finish is nice , no machine marks. Haven't taken any gauges to it yet. Will see how it holds up in the long run. I use their enhanced firing pin and zero failures so far. . Black Rifle Arms has been my new go-to for parts like this. Excellent quality parts, good price and quick shipping.