The bolt and the carrier have excellent machining of all surfaces, top quality workmanship throughout. The fact that both the bolt and the carrier are made from S7 steel with a DLC coating puts it a cut above similar products from other manufacturers. The enhanced design of the bolt lugs ensure reliable operation while maintaining compatibility with other milspec parts. All of this at a very reasonable price. This was my first XBP bolt carrier group, but it definitely won't be my last, I'll be using them again in the future.

I have two SRC XTREME BCG and they work flawless. They are so smooth and I have waited to put my review after I have put atleast 8k rounds through one and my other has well into the 12k range in rounds and all I have done so far is clean them, yes u will get wear just like any bcg but it's very minimal and they still run just as smooth as the day I got them if not better now that they have broke in well. Looking to buy the adjustable bcg next for my 300blk out I just finished

Excellent. I decided to go with this BCG for my primary rifle, I have only about 2000 rounds or so on it, but it has performed flawlessly, wipes clean and looks brand new. I primarily bought it because it is completely made of S7. It is a work of art with beautiful fit and finish. I will build more rifles with these BCGs. Highly recommend them.

Wow! That’s my first reaction. I received my BCG right on schedule and the packaging was excellent. After a cursory cleaning and lube , I took it the range to give it a proper evaluation. Again, Wow! This BCG ate everything I threw at it. Good ammo, cheap ammo and reloads of all varieties. The ejection pattern was impressive. All the brass at the 3:00 to 4:00 o’clock position.
My only regret is that I didn’t get one for my first AR build, but I will be replacing my Aero NIB with one of these.
If you’re reading these reviews and are on the fence about buying one, just do it, you won’t be disappointed!

Best bcg out there. If your build is one you put your life on this is it. Reliable dependable and the self lube aspect of the carbon coating makes this my only choice. The fair price is unbelievable in today's market . If you build ar,s or just upgrade look no more this is what your looking for.