NcStar's KeyMod Handguard for the AR15/M4 Platforms features anodized aluminum construction for light weight and durability, and easy drop-in installation with no special gunsmithing. It fits into your rifle's Delta ring and front handguard cap and uses supplied screws to secure KeyMod handguard in place. This octagon-shaped handguard has seven sides of KeyMod slots, and a solid fit, top rail at AR15 receiver height. It includes: two KeyMod to Picatinny accessory rail sections, one short (3 KM slots/ 5 slot Picatinny) and one medium (5 KM slots/ 11 slot Picatinny) Picatinny rail sections. Designed to fit AR15/M4s with Carbine-length gas systems, Mil-Spec barrel nut, Delta ring, and front handguard cap. It has a black anodized finish. This model is 6.5" long. It weighs 7.9 oz. with both accessory rails installed, and 5.9 oz without rails.

Easy Drop-In install, no special gunsmithing involved, fit into 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
Designed to fit AR15/M4s with: MIL-SPEC Barrel Nut, Delta Ring, and front Handguard Cap.
Length: 6.5"
Weight: 5.9 oz. / 7.9 oz. with both accessory rails attached