AR15 M5 Medium Size Aluminum Quad Rail NFR-M5 AR15 M5 Medium Size replacement forend rail system System adds four mil-spec Picatinny rails for versatile accessory applications Precision machined from 6061 T6 billet Aluminum for Maximum strength Fully rugged construction will not bend or deform under any condition Field tested under extreme conditions for maximum performance and durability Hard coat anodized for optimum wear resistance Simple installation, replace your polymer hand guards and secured by 4 bolts Rail system firmly locks to the barrel nut and front Hand guard Cap No gunsmith required System aligns perfectly upper receiver rail Receiver alignment is achieved by implementation of anti-rotation locking tabs Slim profile for better grip and handling of the firearm
