List of 40 mm grenades

This is a general collection of the world's many types of ammunition for grenade launchers in 40 mm (1.57 in) caliber.

Several countries have developed or adopted grenade launchers in 40 mm caliber.

NATO currently uses three standardized 40 mm grenade families: 40 mm low velocity (LV), 40 mm medium velocity (MV), and 40 mm high velocity (HV). Low- and medium-velocity cartridges are used for different hand-held grenade launchers, while the high-velocity cartridge is used for automatic grenade launchers.

40×46 mm LV (low velocity) is a NATO-standard high–low grenade launcher cartridge meant for hand-held grenade launchers, such as the M79, M203, Milkor MGL, Heckler & Koch AG36 and M320 Grenade Launcher Module.

The propellant has low pressure and gives the projectile an average velocity of 78–84 m/s (256–276 ft/s) depending on the ammunition type.

Besides combat ammo there also exists crowd control ammunition like sponge grenades.

Sweden currently operates the M203 grenade launcher (designated Granattillsats 40 mm Automatkarbin in Sweden) and thus uses the 40 mm low-velocity cartridge. Going against Swedish military tradition, the 40 mm low-velocity cartridge currently lacks a specified indigenous designation in Swedish service. Instead only the projectile types have designations.

Currently these projectile types can be found in Swedish service manuals.