Safety Technology Splatmatic BG-S The Splatmatic accessory transforms any. 40 caliber blowgun into a semi-automatic paintball gun. Remove your mouthpiece and attach the splatmatic to the tube. You can load up to 20 paintballs into the tube supplied with the splatmatic. Every time you press the button&#44; one paintball will load into the barrel. (Paintballs Not Included).