300 Blackout upper. 10.3 DD barrel and gas block, BCM upper receiver, Centurion quad rail. 3 DD 32 round mags. (no bcg or charging handle). ASR muzzle device will come off, unless you want it for a couple of bucks. This thing is super quiet with a "muffler" and subs. It likes the S&B 200gr subs the best. At 50 yards it'll stack impacts. Meet face to face, cash, $600.