The MAMBA Combat Fighting Sling in Black for M4 Collapsible Buttstocks. Made by Spec.-Ops. Brand. Features Tubular web design is super strong and virtually twist/tangle free. MAMBA shoulder strap is 1 inch wide. MAMBA does not use metal snap clips, Velcro® or any noise-making hardware. No clip and ring to reset after each use. Power Strike Zone: Stretch feature allows wearer to strike an opponent with the weapon muzzle while weapon still slung and in ready position. Tensioned triangle design eliminates interference with body-mounted load bearing equipment especially during weapon transitions. Custom postitioning "Speed-lok" feature allows wearer to position and balance the weapon based on the situation. For use with collapsible buttstocks.