BobsPaintballGear.com M68 Thunder Grenade propels four .68 caliber paintballs at over 100+ feet using CO2 as a power source. The M68 Thunder Grenade is charged via the Thunder Grenade Charger with regulated CO2 pressure. The Thunder Grenade Charger has a built in pressure regular that allows the user to control the output pressure of each charge. This regulated pressure determines the velocity of the paintball coming out of the M68 Thunder Grenade. The M68 Thunder Grenade has a patented air accumulator design that allows the CO2 to rapidly expand for a powerful explosion-like delivery. This patented design serves as a noise inducer while also propelling any projectiles loaded into the chamber. The M68 Thunder Grenade gives a loud "bang"; 100 times louder than a paintball gun when shot. The loud "bang" can be used as a decoy to create a distraction for advancement over the opposing force. The M68 Thunder Grenade can also be loaded with simulated smoke powder. This can inflict fear on the opponent when they hear a loud "bang" followed by seeing a cloud of smoke shooting into the air.