Magazines are patterned for AKM/AK-47 rifles in 7.62×39 and hold 10 rounds. Windows are cut on a CNC and hand deburred for smooth, user-friendly edges. Now you can easily track your rounds while you fire your AK pattern rifle. All magazines are hand-tested for function before shipping. Magazines are sold as-is and are made from surplus Combloc mags. These magazines are intended for fun/recreational use. No guarantee is provided for function in adverse conditions.