G&P; Military M203 Grenade Launcher for M4 Airsoft Rifles - LongFull Metal ConstructionFor M4 Series Airsoft RiflesCompatible with most standard 40mm Airsoft Grenade ShellsLaser Etched G&P; LogoLength:305mmCompatibility:For M4 Series Airsoft RiflesGrenade shells::Works with most Standard 40mm Airsoft Grenade Shells