Century Arms Magazine, 7.62X39, 75 Round Drum, Fits AK, Blued Finish MAAK78B The Century Arms AK-47 Drum holds 75 rounds of 7.62x39mm ammo and is easy to load. Simply pull the levers to flip open the top and then drop in your rounds. After a few spins of the built-in key" you are ready to go! Durable steel construction ensures flawless function and long-term reliability.