Windham Weaponry AR-15 Complete Upper Receiver .223/5.56 NATO 16" 1:9" Twist M4 Profile Barrel Flat Top Carbine Length Standard Handguards A2 Front Sight W/BCG and Charging Handle UR16M4LHB
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Typically ships within 1 to 2 business days.
This M4 Barreled Upper Assembly is complete and ready for you to add your choice of Optics or Rear Sights. The highly accurate 16 M4 profile barrel is chrome lined and machined from 4150 Chrome Moly Vanadium steel - 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, and Ejection Port Cover.
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