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For an overview of grenade launcher models in all games, see grenade launcher.
The grenade launcher is a pump-action operated weapon, firing 40mm grenades from a tubular magazine. Despite being only slightly larger than the grenade rifle, it has twice the weight.
The grenade launcher is based on the China Lake model grenade launcher prototype[1] from the late sixties. The receiver and stock are mis-aligned in game however.
pcps3xbox360Dead Money overrides some of the changes that have been made to the grenade launcher in previous patches. With Dead Money installed and nothing else taking up space in your load order, the grenade's base damage is increased to 30, its spread is increased to 1.0, non-player characters will still use ammunition, and it can still be repaired with miniguns. [verified]
xbox360 In V.A.T.S., you may fire 2 or more shots at an enemy, if the first one succeeds to kill the enemy, the other shots will still be fired, rather than exiting V.A.T.S. when the kill is completed, wasting ammunition and time. [verified]
With Jury Rigging, miniguns can be used to repair grenade launchers but not vice versa. [verification needed][platforms tag needed]