Machine gun

Details Machine gun Machine gun

1997-03-07

1999-11-16

Johnson, Stephen M.

Ordnance

Automatic

Breech block lock

89188, 8919101, 42100, 42103, F41A 346

Patent

active

059837748

ABSTRACT:
A gas-operated firearm having a novel bolt construction that includes a locking roller that delays momentarily the action of the bolt upon the firing of the firearm, such delay permitting the bullet to exit the barrel before the bolt can move. The delay is achieved by tapping a portion of the gas generated by the cartridge only after the bullet passes a gas port in the gun barrel to release the locking roller.

REFERENCES:
patent: 943949 (1909-12-01), Mauser
patent: 2089671 (1937-08-01), Stecke
patent: 2921502 (1960-01-01), Amsler
patent: 4213261 (1980-07-01), Claypool
patent: 4677898 (1987-07-01), Malhotra
patent: 4894941 (1990-01-01), Karow, Jr.
patent: 4909129 (1990-03-01), Reynolds
patent: 5179235 (1993-01-01), Toole
patent: 5481819 (1996-01-01), Teetzel

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