PATENT PENDING DIRECT attach design attaches to Forends with KeyMod™ Modular Direct Attachment System. Eliminates the need for 2 separate mounts; 1- A Quick Detach Sling Mount and 2 - A Picatinny MIL-Spec 1913 Bolt-on Rail Section. Accepts any Heavy Duty or Standard push button Quick Detach Sling Swivel (not included) that connects to any sling and sling system. Rotation is limited to allow proper positioning of the sling between the firing and carrying position. Prevents sling wrap-up and twist. MOUNT-N-SLOT is designed to provide a low profile, ergonomic and highly functional device for enhancing weapon control. Direct Attach Design saves weight, reduces part count, increases weapon reliability and increases the function of the QD SLING MOUNT by placing it directly against the surface of the hand guard / fore end. The operator can place them in any single KeyMod Slot. Ergonomic, sculpted, ultra-low profile DIRECT attach design eliminates all sharp edges which can ensnarl the operators gear. 55% increase in usable hand guard grip area by eliminating the Picatinny MIL-Spec 1913 Bolt-on Rail Section. 65% lower profile than a separate Mount and Picatinny MIL-Spec 1913 Bolt-on Rail Section. Ultra-lightweight MOUNT-N-SLOT design. CNC Machined from 6061-T6 aluminum; Hard anodized Type III matte finish per MIL-A-8625F. NO GUNSMITHING Directly Attaches to: KeyMod 100% LIFETIME WARRANTY. PERIOD. Return for full refund including your shipping charges. IWC MOUNT-N-SLOT products are MADE BY AMERICANS in COLORADO.