HeavyBarrel show their project about an RPG-7 for airsoft use using 3D printing.... "Hello everyone! I present a new project to create the legendary RPG-7 grenade launcher (this model is not a weapon). Use is possible only in role / game projects. It is possible to launch certified pyrotechnics, namely "Needles" from StrikeArt (most likely it will be available only in Russia)."

You can download the 3D design here.