Police firearm

Details Police firearm Police firearm

1978-01-16

1979-11-06

Bentley, Stephen C.

Ordnance

Automatic

Breech block lock

89191A, F41D 510

Patent

active

041731700

ABSTRACT:
This invention relates to firearms of the type disclosed in my prior U.S. Pat. No. 3,198,077, granted Aug. 3, 1965, in which the bolt does not turn and the action is locked by turning the receiver. The principal parts, such as floating ring receiver piston and ring power cylinder are made from cylindrical extruded metal tubing or metal rods. The combination of floating ring receiver piston, ring power cylinder and other incidental parts are used to form a new action for an automatic firearm.
This new action consists of a floating ring receiver piston, barrel and ring power cylinder. The above-mentioned parts, the frame and breech block lend themselves to manufacture by the use of automatic lathe and screw machines.

REFERENCES:
patent: 2211405 (1940-08-01), Browning

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