The M203 is a single-shot, 40mm Grenade Launcher deployed in the later stages of the Vietnam War. Unlike the earlier standalone M79, The M203 is fitted under the barrel of an Assault Rifle.
Overview[ | ]
In DayZ, the M203 is found in Military Areas and can be fitted to some American Assault Rifles, like the M16A4, M16A2 and M4A1. The M203 is difficult to use, but a trained operator can land grenades up to 200m away with great accuracy. The M203 is much easier to aim than the GP-25, though it is rarer.
Despite the firepower offered by grenade launchers, it is quite rare for players to actually use them. This may be due to the fact that few players know how to accurately aim them. However, with some practice, the M203 can be a deadly weapon: A direct hit to any vehicle, including Helicopters, will disable or even destroy the vehicle, and near-hits on Infantry will break legs, cause Unconsciousness, and Kill.
It should be noted that the grenades have a minimum arming distance of about 20m, and will do no damage under this range, even if a direct hit is scored on the target.
Grenades for the M203 and GP-25 alike are rare, so it is a good idea to take them when they are available.