DRD M4 Upper Assembly 14.5" 5.56 NATO AR-15 Barrel/ Carbine Length Gas System

Picatinny Rail at 12 and 6 o'clock

Uses DRD Tactical Barrel Nut, Gas Block and Gas Tube. Barrel Nut is bolted on and is not a takedown version.

1/2x28 muzzle threads

1/7 twist

Parkerized Finish

A2 Flash Hider

Does not include BCG or Charging Handle