Automatic or semi-automatic firearm

Details Automatic or semi-automatic firearm Automatic or semi-automatic firearm

1981-10-13

1984-05-15

Bentley, Stephen C.

Ordnance

Automatic

Firing device operation or control

89143, F41D 1102

Patent

active

044481098

ABSTRACT:
A firearm including a basic action system having differential recoil, blow-back operation with moving barrel and a firing mechanism for use in conjunction with the basic action system of the invention or any other type of system operable to fire from a closed-bolt position and an open-bolt position. The basic action system utilizes a single spring which positively positions the bolt and barrel for semi-automatic, closed-bolt firing, while also providing the necessary spring and positioning action for open-bolt, differential recoil, blow-back operation. The firing mechanism of the invention provides for semi-automatic fire from the closed-bolt position, and for full automatic fire from the open bolt position, with a selector to permit selection by the gunner.

REFERENCES:
patent: 834753 (1906-10-01), Reifgraber
patent: 1786536 (1930-12-01), Holek
patent: 1980874 (1934-11-01), Nickl

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