Patent ID: RE40429

Claim:
A bore sight comprising: (a) a tubular housing having an electrically conductive portion; (b) a laser mounted to one end of said housing in electrical contact with said housing conductive portion; (c) at least one battery mounted in said housing electrically coupled with said laser, and (d) an end cap movably mounted to the other end of said housing and in electrical contact with said housing electrically conductive portion for moment between an extended, switch-off position and a retracted, switch-on position, said end cap having an electrically conductive, tubular end positioned adjacent said battery, a spring mounted within said end cap tubular end, and an insulated spacer mounted within said end cap tubular end for reciprocal movement between a switched-off position protruding out of said end cap tubular end spacing said end cap eclectically conductive, tubular end from said battery and a switched-on position recessed within said end cap tubular end with said electrically conductive tubular end in engagement with said battery.