The Ncstar Vism KeyMod AR-15 extended quad rail handguard with FSP cutout rail is a quick and easy drop-in install on most carbine length M4, AR-15 rifle platform, Ruger AR-556, S&W M&P®15 Sport™ and Bushmaster XM15-E2S. The Extended Handguard allows for the mounting of tactical accessories such as bipods, flashlights, and sights. Easy Drop-In install, no special gunsmithing involved on Mil-Spec Rifles fits into standard Delta Ring and front Handguard Cap. Remove factory handguard, drop in the KeyMod handguards and use supplied screws to secure KeyMod handguard in place. Solid fit, top rail is at receiver height and you have 7 angles of KeyMod slots. Black Anodized Aluminum Construction. This model fits: Carbine Length Gas Systems. Includes two Accessory KeyMod to Picatinny Rail Sections. One Short (3 KM slots/ 5 slot Picatinny) and one Medium Length (5KM slots/ 11 slot Picatinny) Picatinny Rail sections. They can be placed in any of the 7 angled KeyMod. This extends past the Handguard Cap and is designed to fit around the front sight post and bayonet lug. Length: 13.0.
Designed Easy Drop-In install to fit AR15/M4s Carbine with: MIL-SPEC Barrel Nut, Delta Ring and front Handguard Cap.
Fits Most AR-15 Carbine platform like the DPMS Oracle, Smith & Wesson M&P 15 Sport, Bushmaster xm15-e2s, Ruger® AR-556® etc.
Note modification may be necessary on non standard Barrel Nut Delta Ring Handguard Cap rifles such as Ruger AR-556 with there proprietary barrel nut modification at own risk.