Kydex® Single Magazine Case * Internal tensioning device retains mag. * One model for single row 1911 type mags. * One model for double row 9mm and 40 caliber metal or polymer mags. * One model for larger polymer mags such as HK, USP and Glock 45 caliber and 10mm. * Unique dual-purpose loop allows use with belts up to 1-inch or can be clipped over the waistband without one.