The BRM Battle Drum is ultra-compact, lightweight, dependable, 20 round drum magazine for compatible compatible weapons (list below). The BRM Battle Drum offers 20 rounds of ammunition, allowing more rounds without requiring a critical reload. It is manufactured from high grade materials which give it unparalleled reliability and strength. The configuration is shorter, stronger, and able to withstand more abuse than comparable magazines making it ideal for use with a bipod, competition shooting, and home defense. It features Typhoon’s patented EZ LOAD wheel to load and unload.