A new standard for me - Griffin Armament Enhanced Mil Spec Bolt Carrier Group (BCG)

Since I’ve had such a positive experience with this BCG, I now start all my builds with one. So far, none have failed me and all of them have been the perfect pair with any type buffer system I use. That includes 556/223 and 300AAC. I do use other brands and models for competitive builds or FRT builds, but for a standard AR15, you can’t go wrong with this BCG IMO.