Colt's Manufacturing M4 11.5" SBR

Colt's Manufacturing Complete Upper 223 Remington/556NATO 11.5" Lightweight Barrel Black Finish A2 Fixed Front Sight, Magpul BUIS Rear Sight High quality components and precise manufacturing makes Colt Products ideal for both new shooters and experienced gun owners. The durability, reliability and excellent build quality will provide years of service you can count on.