Excellent. Just excellent. This gun is a 10/10 for me. Franklin Armory includes an upgraded bolt, including a more robust firing pin and extractor, an extended charging handle, the SB tactical chassis and brace, a flash hider that vents upwards to “help” mitigate muzzle climb and the renowned FA binary trigger installed. Trigger feels crisp with a short reset in semi auto and predictable enough to be reliable in binary. FA states the greatest reliability bx1 and b15 mags. I had zero issues with using cleanish bx25 mags and the gsg 110 round drum mag although the magwell was a little tight on the drum. I shot about 800 rounds suppressed with a Rugged Oculus short configuration using Winchester super suppressed, CCI clean suppressor and Federal suppressed with Zero issues in binary or semi. Its a super fun gun and worth the money