The Launcher for grenades is a weapon that fires an extremely large-caliber projectile that is typically filled with a gas, smoke or explosive warhead, but the word "grenade launcher" in the current context typically refers to guns firing large grenade ammunition. They are usually man-portable, and able to be used http://types-of-grenade-launcher77665.blogocial.com/The-M79-Grenade-Launcher-45191969