"Equipping the AA-12 with this 20-round drum is mandatory for maximizing the weapon's effectiveness in close-quarters combat. While the -1% speed penalty and reduced aim speed are noticeable, the ability to fire 20 shotgun shells without reloading provides a massive advantage in multi-target encounters. It turns the AA-12 into a relentless wall of lead, though the 4.38-second reload time requires the user to find safe cover when the magazine is finally depleted. It is a clear upgrade over the base capacity for any serious PvP or mutant-clearing build."