Designed to fit your AK-47 / AKM pattern rifles chambered in 7.62x39mm. The magazine feeds from a central column, resulting in a fixed center of gravity while firing. These lightweight 75 round steel drum magazines load from the back, so you don't have to insert rounds under tension. Ready for any contingency, they can be stored indefinitely at the full 75 round capacity with no tension on the spring. When ready for use, twist the tension key to provide proper spring tension. Disclaimer: Lifetime Warranty VOIDED if customer disassembles magazine! This magazine is not designed to be used with hollow point ammo. Specifications Weight: 2.1lbs Compatibility: AK-47 / AKM Caliber: 7.62x39mm Capacity: 75 Rounds Body Material: Steel Spring Material: Stainless Steel Finish: Cation Electrodeposition Coating