Drum magazine

Not to be confused with Drum (American magazine) or Drum (South African magazine).
An example of a Beta C-Mag double drum design in use on the M4A1 Carbine
Drum magazines in the bustle rack of the AMX-12t light tank prototype, during trials at Aberdeen Proving Ground, 19 December 1950.

A drum magazine is a type of high-capacity magazine for firearms.[1] Cylindrical in shape (similar to a drum), drum magazines store rounds in a spiral around the center of the magazine, facing the direction of the barrel. Drum magazines are contrasted with more common box-type magazines, which have a lower capacity and store rounds flat.[1] The capacity of drum magazines varies, but is generally between 50 and 100 rounds.[1]

  1. ^ a b c Walker (2013), p. 229-230.