Sri venkateshwara non ferrous foundry supplies magnesium alloy castings for night vision binocular casing, telescopic rifles and instrumentation. Night vision binoculars and telescopic rifles are mainly used by armed forces. The armed forces operates in difficult terrain and hence, lightweight, higher strength to weight ratio and high damping capacity of magnesium alloy makes it an ideal material for such application. Ideally magnesium alloy az 91c is used for this application.