Read the whole review - RISE Armament AR-15 Bolt Carrier Group (BCG)

I bought this BCG in conjunction with the RA535 trigger for a purpose built 14.5 to complement my Atrius super selector. I love the trigger, I love the 14.5. The BCG would not run with the super selector. I had to swap with my Toolcraft BCG. The BCG from RA runs great with my binary trigger. The RA line of drop in triggers work wonderfully with the Atrius super selector. I liked the RA trigger and Atrius so much, I thought I would throw more money at RA and buy the BCG. I’m not disappointed nor upset with my purchase, however, I really thought it would run with the super selector. So if you want to buy this BCG to go with a FRT, I would spend my money on a full auto BCG.