The Collaborative International Dictionary
Dispart \Dis*part"\, n.
-
(Gun.) The difference between the thickness of the metal at the mouth and at the breech of a piece of ordnance.
On account of the dispart, the line of aim or line of metal, which is in a plane passing through the axis of the gun, always makes a small angle with the axis.
--Eng. Cys. (Gun.) A piece of metal placed on the muzzle, or near the trunnions, on the top of a piece of ordnance, to make the line of sight parallel to the axis of the bore; -- called also dispart sight, and muzzle sight.
Usage examples of "muzzle sight".
The muzzle sight never for a second left its aim at the chief's heart.
His gun arm went straight and steadied, the muzzle sight aimed squarely at me.