Bear Creek Arsenal M16 Cut 5.56 NATO Complete Bolt Carrier Group - Black Nitride

Not Chrome lined.

Just received it and it looks to be a quality part, however the carrier is NOT chrome lined. Don't know if this will reduce the reliability or longevity? Time will tell.

This would probably be a great piece to have as a spare, as I got the whole carrier group at the price of an average bolt.

I got several of these today and I'm not sure it has any coating. It looks like the whole thing was spray painted with a .99 cent can of paint from Walmart and touched up with a brush. Not sure if I want to trust them or not.

i got this on sale and its doing well im about 2500 rounds in and its work. im happy with it. will buy more if i see them on sale

A nitride carrier bcg for 70 bucks! Bolt is parkerized mpi stamped. The fit and finish is actually very good. The o-ring is a little stiff. I pulled mine out and it cycles perfectly. This is a good budget option.

This BCG has a nitride finish inside and out. The nitride finish is slicker and harder than chrome lining for those of you complaining. This is the best price I have seen on a nitride BCG.
Buying another one now before the price goes up

nowhere does it say chrome! its not supposed to be! especially at this price. these bolts are fine. at least know what your talking about before posting a poor review.

Nice price and finish but when I took it apart to clean of the factory sticky oil they used, I found the firing pin retaining pin was very hard to remove. I cleaned the BCG up, oiled it and when I tried to put the retaining pin back in, it would not go. Turning the pin and trying several more times resulted in the same thing. It would not go into the opposite side of the BCG. I took the firing pin out and watched as I inserted the retaining pin and saw that it was hitting the end of the gas carrier bolt which deflected the retaining pin so it would not go in the hole. Had to use a dremel tool and grind down the protruding bolt end until the retaining pin went into the hole without interference.

Not sure where the reviewer below got any idea that a nitrided bolt carrier needs to be chrome lined. Nitriding is a superior metal treatment with low friction already.

The spec sheet on the right side of the product page also clearly states that the bolt is parkerized. No indication or reason to believe otherwise when purchasing.

As one reviewer already mentioned, the retaining pin is a little finicky to handle but I've managed to seat it properly without any permanent modification to the bolt or the carrier.

The gas key staking does look a little shoddy and I'll likely try to restake it myself in the future. I managed to put 180 rounds through this BCG so far without any gas key movement. It should hold just fine for the time being.

It's a pretty decent deal on a bolt carrier group although most buyers are likely looking for either parkerizing or nitriding--not a mix of both. For me, it was a birthday gift so I really can't complain.

The carrier is nitride coated and the bolt is parkerized. It's not supposed to be chrome plated anywhere. The nitride coating is better than chrome plating anyway. It looks every bit as good as any of my other bolt carriers.