Underslung Grenade Launcher
From Airsoft Community Wiki
An Underslung Grenade Launcher is a short-barreled weapon accessory that fits under the barrel of an assault rifle, and fires grenade shells (usually 40mm). The most popular is the M203 UGL for the Armalite M4/M16 family of weapons, however there are many other UGLs avaliable, including ones for the SA80 and AK47/74 families of weapons.
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Types of Shells
Most shells that can be bought for UGLs are of the gas type. These use compressed gas (like used in Gas Blowback pistols) to fire a large number of rounds over a large area. Capacities range from 50 rounds to 204 rounds. There are also shells that eject a time-delayed fragmentation grenade.
