Designer: Brian Fausi (Based on China Lake Naval Research) Manufacter: CANAL SIDE GUNS, Caliber: 40mm Grenades (M79), Capacity: 4 grenades + 1 round in chamber, Operating Sistem: Pump action, Production: almost 30 units. Description: ULTIMATE M79-TYPE GRENADE LAUNCHER - THIS GRENADE LAUNCHER IS A COPY OF THE 4 SHOT PUMP DESIGNED BY CHINA LAKE NAVAL RESEARCH FACILITY IN CA. ORIGINALLY DESIGNED FOR THE NAVY SEALS, IT GAVE A GRENADIER MORE THAN ONE SHOT WITHOUT HAVING TO RELOAD HIS WEAPON. UNDER 30 WERE MADE, AND JUST A FEW ARE LEFT IN MUSEUMS.