This unique BB launcher allows you to launch a massive grenade blast without the need for a 40mm grenade launcher mount. Just like a real rifle grenade, the RG108 attaches to the end of your airsoft rifle using a special flash hider mount. The grenade shell is green gas powered and fires a massive 108-round blast of BBs. The quick-detach system makes it easy to setup and remove the RG108 while you’re in the field.