Enhanced nb bcg - TRYBE Defense Mil-Spec 5.56 Enhanced Complete Bolt Carrier Group (BCG)

Product arrived very quick with my other items.
The NB carrier has clearly visible machining marks about 1” in length just above the forward assist serrations. The carrier key bolts are not NB coated on the one I received, they are black YFS stamped and properly staked. Reverse torque test passed fine.
The bolt has no markings of any type mfg or testing that may have been done. Ejector is black and spring rate is within spec out of the package. The extractor is NB coated and within spec, the spring is a 4 coil using both the o-ring and buffer insert. The extractor spring itself looks to be of a lesser quality than BCM, Spikes, or Spring Co varieties I have on hand to compare it with. Firing pin is either Chrome or NB coated and within spec. Cam pin is NB and within spec. All NB coated parts are well done, no issues I could find with the coating. Head space checked against 4 barrel manufacturers Spikes, Noveske, FN, and Faxon all passed.

Not having used this BCG yet I can’t speak to the function, but all testing of the unit I can do is within spec. I will update my review once I get some rounds on it.

Ok quality for a cheap NB backup complete BCG to have on hand.