The Century Arms MAAK78B is a high-capacity 75-round drum magazine for 7.62×39?mm AK-style rifles and pistols. Constructed primarily of steel (though some listings note polymer variants), it measures approximately 7.75?×?6?×?2.25?in and weighs about 2.25?lb empty (≈5?lb loaded) . Loading is straightforward: open the levers, flip up the top, drop in rounds, and spin the built-in key to tension the spring . It fits any AK platform with a double-stack magwell and includes an instruction manual and retail packaging . Priced between $130–190, availability varies by state due to magazine capacity restrictions.