Designed for use with all m-lok compatible handguards and forends m-lok aluminum rail sections allow the attachment of various 1913 picatinny spec rail-mounted accessories such as lights vertical grips etc.Kit contains: 1 cmc m-lok qd sling mount.1-cmc m-lok 3 slot picatinny rail.3 slot l:1.25".W:0.75".H:0.50" weight: 2.0 oz.1-cmc m-lok 5 slot picatinny rail.5 slot l:2.50".W:0.75".H:0.50".Weight:4.0 oz.1-cmc m-lok 7 slot picatinny rail.7 slot l: 3.0625" w:0.75".H:0.50".Weight 6.0 oz.Qd sling mount accepts any push-button qd swivel.Qd mount l:1.50" w: 0.3125".H:0.50".Weight: 2.0 oz.Beveled edges reduce snagging.Length: PicatinnyType: Rail KitModel: M-Lok 4-Piece Accessory KitMisc: AluminumFinish: AnodizedMaterial: AluminumMount Type: M-LOK