BUY ATI AR15 Mil-Sport 5.56/.223 Rifle Kit

Forged Aluminum Upper Receiver 
16″ 5.56 / .223 Black Nitride Coated Barrel
Standard M4 Handguard
Standard Profile Picatinny Rail Gas Block
Six Position Roger Super Stock
Chambered for both NATO 5.56x45mm and .223 Remington
Flat Top, Optics Ready
Mil-Spec
Standard AR15 Lower Parts Kit
Fully-Assembled Upper Receiver
Ambidextrous Sling Plate