FosTech Barrett M107A1/M82A1 50 BMG 20rd Drum Magazine

FosTech's 20rd drum doubles the capacity of the 10rd box magazines that Barrett M107A1 and M82A1 rifles normally feed from. Fewer magazine changes matter when every reload means coming off target with a rifle this size, and a drum keeps the big 50 running through long strings of fire.

The drum locks into the standard Barrett magazine well and feeds 50 BMG without modification to the rifle. FosTech is best known for the Echo trigger line, and the same shop builds this drum for Barrett's semi auto 50s. If you own one of these rifles, you already know how scarce serious capacity upgrades are for the platform.