This grenade contains a flash charge which produces a bright flash and a loud bang. At the same time, the blast propels rubber balls in a circular pattern. The Sting-Ball is also available with irritant powder additives in CN, CS and OC. This grenade is an excellent tool for a variety of tactical applications. OPERATION : This grenade can be thrown by hand or launched from most 12 gauge shotguns by using an appropriate launching adapter and launching cartridge. Upon release, the safety lever initiates the Model 201 precision delay fuze, which in turn initiates an ejection charge. This charge separates the fuze assembly from the body and initiates an additional delay at the end of which the flash charge is activated. NSN# 1330-01-454-0132 SPECIFICATIONS: Diameter: 79mm (3.1") Overall Height: 130mm (5.1") Overall Weight: 270gm (9.5oz) Load: 105 Balls (.31cal. Rubber Balls) Sound Output: 1755 @ 5 feet Light Output: 6-8 million candela @ 5 feet for duration of 101 milliseconds