Original U.S. Vietnam War Experimental XM-148 Grenade Launcher Sight in Original Case with Two Government Photos - Rare OPTIONS_HIDDEN_PRODUCT The "rectangular" trademark logo was

The "rectangular" trademark logo was only seen on a very few SS daggers

and looks to have been repainted when in service

and a firm cylinder lockup

all B-52 Stratofortresses were transferred from the ACC to the new Air Force Global Strike Command (AFGSC)

Original U.S. Vietnam War Experimental XM-148 Grenade Launcher Sight in Original Case with Two Government Photos - Rare OPTIONS_HIDDEN_PRODUCT The "rectangular" trademark logo wasOriginal Item. Only One Available. The XM148 was an experimental 40 mm grenade launcher developed by Colt Firearms as the CGL 4 (Colt Grenade Launcher). Colt manufactured the launcher for field testing during the Vietnam War era. After problems with the experimental design were discovered, the XM148 was replaced by AAI Corporation's conceptually similar M203 design, which became the primary grenade launcher used by the US armed forces and others until