Shotgun having light weight interchangeable barrel tubes

Details Shotgun having light weight interchangeable barrel tubes Shotgun having light weight interchangeable barrel tubes

1993-09-15

1995-09-12

Johnson, Stephen M.

Firearms

Barrels

Auxiliary

89 1405, F41A 2110

Patent

active

054488486

ABSTRACT:
A shotgun barrel tube which has an enlarged chamber portion and an elongated barrel. A series of threads or grooves are formed circumferentially around the outer surface of the barrel tube to remove sufficient material to lighten the weight of the barrel tube and maintain sufficient strength to withstand internal pressure when a shotgun shell is discharged.

REFERENCES:
patent: 1217347 (1917-02-01), Rosengarten
patent: 2736119 (1956-02-01), Clarkson et al.
patent: 2981155 (1961-04-01), Parlanti
patent: 3339304 (1969-09-01), Knode, Jr. et al.
patent: 4641450 (1987-02-01), Moll et al.
patent: 4685236 (1987-08-01), May
patent: 4989359 (1991-02-01), Kinkner et al.

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