Backup sights Synonyms

Backup replaced

alternate sights

secondary sights

double sights

additional sights

Definitions for Backup

(noun) a crowded mass (as of cars) that impedes or blocks movement
(noun) a person or thing that takes the place of another
(noun) the act of providing approval and support

BS abbreviation

BS is an abbreviation for Backup Sights

What does BS stand for?

BS stands for "Backup Sights"

Sights replaced

Definitions for Sights

(noun) an optical instrument for aiding the eye in aiming, as on a firearm or surveying instrument