Drum magazine

Details Drum magazine Drum magazine

1982-06-24

1984-12-11

Schafer, Richard E.

Ordnance

Cartridge feeding

Drum magazine

F41C 2510, F41D 1012

Patent

active

044871031

ABSTRACT:
A drum magazine particularly intended for feeding shotgun shells to a firearm such as an autoloading assault shotgun. The drum magazine includes a cartridge-carrying rotor having a pair of sprockets, and powered by a torsion spring disposed on a central post within the drum. A last-round cartridge follower, removably carried by the rotor, can move either to a radially-extended position to feed the last round from the drum, or to a position of reduced effective radius to accommodate the first round in the fully-loaded drum. The drum magazine is adaptable to shells of different lengths.

REFERENCES:
patent: 979721 (1910-12-01), Sunngard
patent: 1867513 (1932-07-01), Lahti
patent: 2007774 (1935-07-01), Sedgley
patent: 2131412 (1938-09-01), /O/ stman
patent: 2338984 (1944-01-01), Van Horn
patent: 4332097 (1982-06-01), Taylor
"The World's Fighting Shotgun" by Thomas F. Swearengen, Copyright 1978, pp. 385-398.
"Gun World", Aug. 1971, pp. 40-42.
"Jane's Infantry Weapons", Copyright 1974, p. 337.

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