The GG&G "Sling Thing" attachments are designed to provide a versatile and robust method for attaching tactical slings to AR-15/M16 rifles. These attachments prioritize side mounting, which is the preferred position for tactical slings. AR-15 Front "Sling Thing" Sling Attachment Specifications Design: Lightweight and versatile, fits AR-15/M16 front sight. Ambidextrous: Suitable for both left and right-handed users. Installation: Easy to install on the "A-frame" front sight assembly using counter pressure steel socket head cap screws. Features: Can be substituted with a MIL-STD-1913 rail (purchased separately). Edges are rounded and softened for shooter protection. Material: 6061-T6 solid aluminum alloy. Finish: Type III hard coat anodized, non-reflective matte black per Mil-Spec. Weight: 1.1 oz. Warranty: Lifetime. Origin: Made in the USA. AR-15 Rear "Sling Thing" Sling Attachment Specifications Design: Lightweight and versatile, fits AR-15/M16 collapsible stock. Ambidextrous: Suitable for both left and right-handed users. Mounting: Solid and robust, held in place by counter pressure steel socket head cap screws. Features: Edges are rounded and softened for shooter protection. Material: 6061-T6 solid aluminum alloy. Finish: Type III hard coat anodized, non-reflective matte black per Mil-Spec. Weight: 1.7 oz. Warranty: Lifetime. Origin: Made in the USA. Both front and rear attachments offer a reliable and durable solution for mounting tactical slings on AR-15/M16 rifles, enhancing the functionality and usability for the shooter.