The Blue Force Gear A1/A2 Buttstock Adapter band provides an ambidextrous connection point on the top of M16 / AR 15 / AR15 A1, A2, and A4 buttstocks. This brings the sling attachment point to the top of the weapon, reducing the tendency for the weapon to flip upside down, which is prone to happen when using the standard sling attachment point on the bottom of the stock. After installation, ensure adapter is tight enough to tuck the tag end inside of the attached Hook and Loop tab.FeaturesSling Adapter for fixed stock weaponsFits A1 / A2 Buttstocks with sling swivel on the bottom of the stockFits some Remington 870, Mossberg 500 series shotguns