Sighting means of a firearm

Details Sighting means of a firearm Sighting means of a firearm

1974-05-17

1976-01-06

Aegerter, Richard E.

Geometrical instruments

Straight-line light ray type

Aerial bomb sight

33251, 33252, F41G 108, F41G 1100

Patent

active

039303160

ABSTRACT:
The rear sight of a firearm has a peephole device formed by a hollow tube, each of the two ends of which are closed by a peephole. Each peephole has a central orifice therein. The orifice of the peephole of the rear side has a larger diameter than the orifice of the peephole on the front sight side. Each peephole is pivotally mounted and cooperates with an elastic member which holds the peephole in its tube-opening or tube-closing position. In a further embodiment, two peepholes are provided at each end of the tube.

REFERENCES:
patent: 727073 (1903-05-01), Brayton
patent: 971287 (1910-09-01), Lovejoy
patent: 1012427 (1911-12-01), Peddie
patent: 1540772 (1925-06-01), Gibbs

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