bore sight

noun, verb — 3 senses

bore sight

noun

1

Engineering, Firearms, Government, Military, Natural sciences, Physical sciences, Politics, Tools, War, Weaponry An optical device, mounted on or near the end of a firearm's barrel, used to align the sights with the bore.

2

Engineering, Firearms, Government, Military, Natural sciences, Physical sciences, Politics, Tools, War, Weaponry A dummy cartridge containing a small battery-operated laser, used to align the sights.

bore sight

verb

1

Engineering, Firearms, Government, Military, Natural sciences, Physical sciences, Politics, Tools, War, Weaponry To align the sights and aiming point of a firearm using a bore sight optical tool.

Entry derived from the Wiktionary, under licence CC BY-SA 4.0 — list of authors.