Stag arms by Statistic9000 posted Feb 25, 2016 at 4:13 PM Stag Arms Model 8 16" carbine length piston upper. It comes with MI BUIS and a Troy Claymore muzzle brake already installed. Also, including a NIB Magpul CTR stock and MIAD grip, both in black. The upper has about 150 rounds through it. Looking for $600 for everything or best offer. Also, looking to trade for stripped AR-15 or AR-10 lowers plus cash.