This Ncstar AR15/M4 triangle m-lok handguard fits carbine length gas system AR-15 rifles. This replaces the standard AR-15 carbine and M4 length handguards. It also fits the Smith And Wesson M&P 15, Ruger AR-556 and many other AR-15/M4 carbine platforms. It's an easy drop-in install no special gunsmithing is involved. It fits into the delta ring and the front round handguard cap. simply Remove the factory handguards, then install the m-lok handguards and secure them with the four screws provided. A US patent is pending. The top rail is at receiver height, and there are m-lok® slots on both sides and the bottom of the handguard. It comes with two m-lok to picatinny rail accessory sections. One short (5 slot picatinny) rail section and one medium (9 slot picatinny) rail section are included. The rails can be placed on any of the sides or bottom m-lok® slots. The handguard is made from black anodized aluminum construction. Handguard surface overall length is 8.75". The handguard extends past the front handguard cap and front sight post, to give you more surface area to place your hand and accessories.
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Designed to fit AR15/M4s with MIL-SPEC Barrel Nut, Delta Ring and front Handguard Cap. Note modification may be necessary on non standard Barrel Nut Delta Ring Handguard Cap rifles.