Adapts to your universal vest, belt or platform. Elastic retention straps with fully adjustable hook-n-loop movable flap cover to accommodate various size mags. Quick-open assist tabs and metal drain grommets. Holds 4 M4 30-round mags, 2 AK47 or .308 mags. Measures 7"L x 2"W x 7"H. Please specify color.