Artillery Gunner’s Quadrant M1A1 w/ Carrying Case M82

This M1 Gunner’s Quadrant is a compact precision instrument designed to accurately elevate artillery, measure firing angles, and ensure proper alignment of fire control systems.

 
Extensively issued by the U.S. Army, it was used across a broad spectrum of weaponry, from rifles and howitzers to mortars, self-propelled guns, armored landing vehicles, anti-aircraft mounts, and multiple rocket launchers. The Quadrant M1A1 adjustment knob rotates smoothly, the slide tracks cleanly across the scale, and the leveling bubble is intact and fully visible within the sealed glass chamber.
 
Included is the M82 metal case and strap and remains in very good condition.