Bear Creek Arsenal 7.62x39 upper. Is it as good as an AK? I don’t know. I don’t have an AK
This review covers a Bear Creek Arsenal 7.62x39 AR-15 upper receiver. Initial testing revealed feeding issues attributed to magazines and steel-cased ammunition. After approximately 80-120 rounds and cleaning, the performance improved, suggesting a break-in period. The upper features an enhanced firing pin for better primer ignition, especially with harder steel-cased ammunition.













