Haley Strategic Partners MP2 Magazine Pouch, Insert, Fits Rifle Magazines, Polymer Construction, Black, 4 Pack MP2-1-4-BLK The MP2 is an injection molded rifle magazine retention insert for chest rigs, placards, and magazine pouches. The intuitive design enables secure retention of most 5.56x45, 5.45x39, 7.62x35, 7.62x39 and 7.62x51 rifle magazines without the need for pull tabs, bungies or loud hook and loop flaps. The positive click-in retention provides audible and tactile feedback and delivers a smooth draw without impacting the ability to quickly reindex partial magazines during tactical reload.