The M203 is compatible with the M4, M16A1 M16A2, M16 Vietnam and other Automatic Electric Guns (AEGs) The FSW Airsoft designed the M203 launcher with metal parts such as, the barrel, trigger guard, Barrel Latch. The FSW Airsoft M203 requires a 40mm grenade shell. The Shell capacity can vary from 18 to 204 rounds per shot.
FSW Airsoft M203 Rail Mounted Variant
The R.I.S. (Rail Interface System) version of the popular M203 boasts the same great features as the original with the addition of a solid metal rail mount with metal thumb screws designed to allow quick and secure attachment and removal to picatinny style rails.
