PRECISION PRODUCTS

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M1A3 Gunner’s Quadrant

M1A3 Gunner’s Quadrant

The M1A3 Gunner’s Quadrant is a portable precision leveling instrument used for laying artillery weapons in elevation, measuring their angles of elevation, and checking the elevation mechanisms of fire control equipment.

Azimuth Test Fixture

Azimuth Test Fixture

The Azimuth Test Fixture is designed for checking the azimuth accuracy of various fire control instruments including backlash error, level travel, and counter/scale accuracy.

Collimator Projector

Collimator Projector

The Collimator Projector is used as a known distance target, allowing long range adjustments of telescopes in short range conditions.

M3 Borescope

M3 Borescope

The M3 Borescope is a portable optical borescope used to visually inspect cannon bores of howitzers, tanks, and mortars for defects of manufacture and damage caused by firing.

Dioptometer

Dioptometer

The Dioptometer is a precision instrument used in accurately determining the diopter setting of another instrument.

M28C Periscope Sight

M28C Periscope Sight

The M28C Periscope Sight is a monocular-type optical sighting instrument used for direct-fire applications on vehicle-mounted, medium-caliber weapons.

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