Quality bcg, nice finish. - Aero Precision AR-15 6mm ARC, 6.5 Grendel Bolt Carrier Group (BCG)

Considering these things are oddly expensive and hard to find right now, getting a hold of one is very refreshing. Plus it’s Aero, you really can’t go wrong with aero. I put this in my M4E1 upper with a spike extended handle and she works like a dream. Just buy it already. Just make sure you have the right bolt face type.