Manufactured by TRW, the M79 "blooper" infantry grenade launcher of Vietnam War fame was designed to fill the gap between hand-thrown grenades and a crew-served mortar, maintaining a balance between the agility of the former and the striking power of the latter that was extremely useful in the sort of extremely fluid, high-speed clashes that could happen in the field. Blade front and folding ladder rear sights with fixed "battle notch" mounted to the barrel, automatic tang safety, swiveling winter triggerguard, and a solid recoil pad.