“Nitride finish is glossy smooth and even. I opted for the C158 bolt. Gas key staking is good. So far it is running well in an Aero Precision 10.5” upper.
Honestly can’t see a significant difference between this and my BCM bolt carrier group.”
“Excellent quality BCG, holding up well after ~1000 rounds of full-auto fire with my M4E1 combo upper/handguard on my M16 RR. Not just "great for the price", but "great", period.”
