Introduced during the Korean War , it was an early active infrared night vision equipment powered by a large 12 volt battery that was carried in a rubberized canvas backpack .
USMC M3 Sniperscope assembled on a M1 Carbine .
Introduced during the Korean War , M3 Sniperscope was an early active infrared night vision M3 Sniperscope powered by a large 12 volt battery that was carried in a rubberized canvas backpack .
USMC M3 Sniperscope assembled on a M1 Carbine .