MDX Arms 16" 300AAC M-Lok HG Pistol Length Complete Upper

Upper Receiver T6 7075 Forged HA Type III M4 Feed Ramp Standard Mil-Spec Dust Cover & Forward Assist Charging Handle Standard Mil-Spec Charging Handle Bolt Carrier Group Black Nitride / QPQ Finish M16 Full Auto with Staked Gas Keys 9310 Steel...