Circle 10 "Waffle Pattern" 7.62x39 Caliber 30 Round Magazine. Original Arsenal Bulgaria Black Polymer Mil Spec Magazine. A quality magazine is THE most important accessory you can purchase for your rifle. Many of you own AK’s because of their reliability. Why jeopardize its reliability and durability with cheap magazines? Arsenal Circle 10 magazines are inarguably the finest AK magazines in the world-period. They are the ONLY magazine to pass 100% of the military drop tests, 100% of the time. Circle 10 magazines are made from the highest quality polymer, contain steel reinforcements front/back, steel feed lips, and a steel locking lug. Should you drop your loaded rifle or run into something, they WILL NOT break off and leave you with a possibly non-functioning gun. Circle 10 magazines feed and function perfectly all the time-every time.