The Vault - Fallout Wiki

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The Vault - Fallout Wiki
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This is a lore summary, presenting intradiegetic or in-universe information about the subject. For game characteristics and similar data, consult the table on the right.
Game-specific articles
Fallout 3Grenade launcher Cut contentIcon cut.png
FO: New VegasGrenade launcher
Grenade rifle
Mercenary's grenade rifle
Great Bear grenade rifle
Red Victory grenade rifle
Grenade machinegun
Fallout 76M79 grenade launcher
Auto grenade launcher
FO TacticsGrenade launcher
Grenade pistol
Heckler Cut contentIcon cut.png
Gametitle-FO3 BS.pngGametitle-FNV.pngGametitle-F76.pngGametitle-FOT.png
Gametitle-FO3 BS.pngGametitle-FNV.pngGametitle-F76.pngGametitle-FOT.png

A grenade launcher refers to a weapon designed to project specially-designed grenades at ranges far greater than the average soldier could, with superior accuracy and velocity. The term encompasses a broad array of weapons, from small, hand-held launchers to crew-served automatic weapons.


M79 grenade launcher


One of the earliest United States grenade launcher designs, built around the 40mm grenade. Utilizing the High-Low propulsion system, the M79 allows the operator to deliver high explosive rounds at a range of hundreds of meters, while its rugged design - consisting of just five major parts, a receiver, fore-end, barrel, sight, and stock - offers excellent reliability. The one drawback is that the grenade launcher is single-shot only, reducing its rate of fire and precluding a sustained volume of fire. However, it is quite compact, especially with the stock sawed off, while the straightforward optics, consisting of a fixed blade sight on the front and a folding leaf sight on the rear, enable accurate fire with just pointing and shooting. These qualities kept it in use well into the late 21st century, showing that simplicity is beauty.[1][2]

Pump-action grenade launcher

Grenade launcher.png
Gameplay article:

A pump-action weapon with a tubular magazine holding four 40mm grenades, the grenade launcher is an excellent tool for delivering explosives over long distances. Leaf iron sights similar to the grenade rifle are mounted on it. The front sight is a fixed square notch.

While the feed system makes the launcher significantly heavier than a standard grenade rifle, the launcher's body makes an excellent platform for experimental energy weapon conversions.

Automatic grenade launcher

Gameplay articles:

The automatic grenade launcher, sometimes referred to as a grenade machinegun, is a belt-fed, blowback-operated, air-cooled automatic weapon designed to lay down a heavy volume of explosive ordnance and support infantry and vehicle operations. Designed for use as a crew-served weapon, the automatic grenade launcher was intended for use against a variety of targets ranging from infantry and light vehicles to fortifications and other materiel. The sheer weight of the weapon and bulk of the ammunition limited its versatility, until the advent of power armor. Since then, many units were converted for use on foot, rather than from a tripod.[3]

U.S. automatic grenade launchers were manufactured in two major variants, accepting 25mm and 40mm grenades, together with a variety of additional equipment, such as an electronic fire control system (though most of these systems have failed in the decades after the war, becoming little more than dead weight).[4]

Grenade pistol

Mini-FOT Logo.pngThe following is based on Fallout Tactics and some details might contradict canon.
Tactics grenade pistol.png
Gameplay article:

Single Shot Grenade Pistol. Heavily modified flare-gun, chambered to fire a 40mm grenade.

Combat grenade launcher

Icon cut content.pngThe following is based on Fallout 3 cut content and has not been confirmed by canon sources.
Gameplay article: Grenade launcher (Fallout 3)

A grenade launcher that looks exactly like a combat shotgun but used frag grenades instead of shotgun shells for ammunition.


Icon cut content.pngThe following is based on Fallout Tactics cut content and has not been confirmed by canon sources.
Gameplay article:

A semi-automatic magazine-fed grenade launcher.


  1. Weapon appearance and naming.
  3. Appearance of the weapon and parallels with the Mark 19 Mod 3 automatic grenade launcher.
  4. Automatic grenade launchers in the games.