Great bolt carrier group! - Walker Defense Research Dark Matter High-Polish DLC Bolt Carrier Group

This is an excellent bolt carrier group. DLC is pricy, but is worth the extra cost. The carrier works flawlessly! The only reason that I gave this product four stars rather than five is because there are some VERY jagged edges on one of the pins (taper?). This carrier is supposed to have had a lot of extra care put into it, such as hand-selecting each piece, and a premium is charged because of that. There should not be a single jagged edge, let alone an entire area where the pin has been smacked into place.