The compact HFC HG-138 Grenade Launcher Accessory is available at MiR Tactical and it's a good backup when unable to reload during a CQB game apart from clearing tight spaces. It can hold up to 40BBs and can be mounted to the under rails of airsoft pistols too... "This HFC HG-138 is the best extra accessory for your pistol! Here at MiR Tactical we have it all!"