The Mk19 grenade launcher, first introduced during the Vietnam War, remains a cornerstone of U.S. military firepower. This crew-served, belt-fed, fully automatic weapon delivers 40mm high-velocity ...

The MK19 40mm machine gun is an air-cooled, disintegrating metallic link-belt fed, blowback operated ... Want to know about the MK19 Grenade Launcher? Here are a couple quick bullet point facts.