Description: Nc-Star AR15 Triangle M-LOK Handguard - Carbine • Easy Drop-In install, no special gunsmithing involved, fit into Delta Ring and front Handguard Cap. Remove factory handguard, drop in the M-LOK® handguards and use supplied four screws to secure M-LOK® handguard in place. US Patent Pending • This model fits: Carbine Length Gas Systems. This replaces standard Carbine and M4 Length handguards. • Solid fit, top rail is at receiver height and you have M-LOK® slots along each sides and the bottom of the handguard. • Includes two Accessory M-LOK® to Picatinny Rail Sections. One Short (5 slot Picatinny) and one Medium (9 slot Picatinny) Length Picatinny Rail sections. They can be placed in any of the sides or bottom M-LOK® slots. • 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.