The X2R - Covered Will Handle Almost Any Type Of Rifle Magazine. The Stacked Design Allows The User To Carry Two Mags In A Single Pouch Thattakes Up Only 3 Of Horizontal Space On Your Platform: Proprietary 1000D Cordura Nylonlaminate Injection-Molded Polymer Flexible, Elastic Shock Cord Buckled Flap For Extra Protection Advantages: Adjustable To Multiple Sized Magazines Additional Security And Protection Positive, Adjustable Retention Second Magazine Remains Secure Andstable When The First Is Removed