Navy SEAL teams were pleased with the resultant pump-action grenade launcher. The M79 and XM148 grenade launchers were single-shot, and the repeating T148E1 grenade launcher was unreliable, so a request was made to China Lake engineers. The China Lake Model (or China Lake pump-action grenade launcher) is a pump-action grenade launcher that was developed by the Special Projects Division of the Naval Air Weapons Station China Lake, which provided equipment to United States Navy SEALs. Open, rear sight is the M79 ladder elevation sight system marked 375 meter ladder, front is a M79 square-notch/blade Total known China Lake Grenade Launchers is 13 with this information.ģ-round tubular magazine(+1 In the chamber) Late manufactured reproduction CSG/Trident China Lake Launchers are said to number at nine in total during a manufacturing run from 2003-2009. Naval Air Weapons Station (NAWS) China Lake Facility.ġ968 Naval Air Weapons Station (NAWS), 2007-2009 Airtronic/Trident, 2003-2009 CSG/Trident.ĥ0 original 1968 receivers, only four are known to still remain intact in museums in the U.S. CSG/Trident Reproduction China Lake Grenade Launcherġ967-1968 NAWS 2003-2009 Trident/Airtronic