Assertion: sight | /r/ObjectUse | used in british susat sight
Facets:
value: in the american acog
type: LOCATION
Source sentences:
text: Some sights also use the radioactive decay of tritium for illumination that can work for 11 years without using a battery, used in the British SUSAT sight for the SA80 (L85) assault rifle and in the American ACOG (Advanced Combat Optical Gunsight).