The ACP is a Universal, Aircraft-Grade Aluminum Pistol to Carbine Adapter Designed to Quickly and Easily transform virtually any full-size railed pistol into a M1913 accessory customizable carbine platform. Simply slide your pistol int the accessory rail clamp adapter and lock it into place ! The ACP-ENHANCED includes ACP Universal Pistol Rail Adapter, QD sling mount and single point QD bungee, and MIL-GRADE Mini Red Dot Sight.