3 Sizes Set 5 7 13 Slot 2" 3" 5" Picatinny Weaver Rail Mount ABS Plastic Keymod Handguard Section for Hunting2" 3" 5" Rail Sections for KEYMOD handguardAccessory rail section, for Keymod spec. handguards onlyThree sections included2" with 5 slots3" with 7 slots 5" with 13 slotsIdeal for attaching lights, laser, optics, bipods, and forward gripsLightweight, made of ABS PlasticMounting screws and tools includedMaterial: ABS Plastic Weight54gDimensions1 x 5" (length) x 9mm (height) x 20mm (width)1 x 3" (length) x 9mm (height) x 20mm (width)1 x 2.25" (length) x 9mm (height) x 20mm (width) Items Included: One (1) 2" rail section for Keymod handguardsOne (1) 3" rail section for Keymod handguardsOne (1) 5" rail section for Keymod handguardsThree (3) Allen wrench7 sets of mounting screws