The M79 Grenade launcher available  in The Operative: No One Lives Forever. It shoots High Explosion (HE) grenades which are capable of dealing so much damage that one-shot kills are not uncommon with this weapon. It is a very slow weapon in every aspect though: with its grenades travelling at a very low velocity and a long reload time, this weapon won't do much good in close-quarter fighting. You can carry a maximum of 25 grenades.




M79 grenade launcher on Wikipedia