Windham Weaponry UR16A4B Complete Upper Assembly 223 Remington/5.56 NATO 16 in Blk

This heavy barreled Upper Assembly is complete and ready to snap onto your Lower. A superbly accurate 16 heavy profile barrel - chrome lined and machined from 4150 Chrome Moly Vanadium steel is rifled 1 x 9 Right Hand twist. An A2 Flash Suppressor and standard A2 Front Sight are fitted. The machined aluminum flat top Upper Receiver is complete with Bolt Carrier Assembly, Charging Handle, Forward Assist, Ejection Port Cover, Removable A4 Carry Handle with 300 - 600 meter Dual Aperture Rear Sight.