Ambidextrous Sling Attachment Point helps the operator adapt quickly to changing tactical situations by allowing rapid switching of weapon from one shoulder to the other. An unrestricted 180 degree of sling movement lets you change shoulders to take maximum advantage of available cover, address targets around corners or other barriers, or shift weapon position if one arm is injured. Works with any single-point sling that attaches with a quick-release snap-hook, and fits any rifle or carbine with an M4-type collapsible buttstock. Simply remove the factory receiver end plate and replace with the ASAP; requires no other alterations to weapon, so you can continue to use your original receiver extension, buttstock, and sling. Heavy duty cast steel construction with a 1/8" thick link ring, protected by a durable, wear- and corrosion-resistant mil-spec black manganese phosphate Parkerized finish. Fits both Commercial and Mil-Spec receiver extensions.