This AR15 Quad Rail For M&P 15 Sport is a Drop In Handguard that features four picatinny rails for mounting accessories to your Smith & Wesson M&P 15 Sport carbine length rifle. The quad rail handguard top rail extends to AR upper receiver to form a continuous picatinny mounting rail platform.The hanguard has a clever top/bottom two-piece design with integral spinal cords/alignment housing for a perfect fit with a standard barrel nut and round front cap and it is made from aircraft aluminum with precision CNC machining and excellent anodizing and engraving. It is designed to fit carbine-length M4/AR15 rifles and features four picatinny rails with 14 slots each. This quad rail has great zero-retention capability for all your AR-15 accessories installed on the rails. Super easy installation with no modification to the barrel and black rubber rail guards are included for comfort.
Fits Most AR-15 Carbine platform like the DPMS Oracle, Smith & Wesson M&P 15 Sport, Bushmaster xm15-e2s, Ruger® AR-556® with a standard delta ring assembly, barrel nut, and round front handguard cap. This quad rail system is designed to fit with standard AR15 gas tube. The compatibility with any special piston system is not guaranteed.