Rotating bi-directional pneumatic gun

A rotating bi-directional pneumatic gun comprising:

• a body having
• a barrel having
• a front end;
• a rear end;
• a passage having a diameter, and
• an outer surface;
• and
• a handle being attached on the outer surface of the barrel and having
• a chamber;
• a connecting passage being communicated with the passage of the barrel;
• and
• a valve device being mounted between the chamber and the connecting passage and communicating the connecting passage with the chamber when the valve device is on;
• and
• a guiding tube being mounted rotatably in the passage of the barrel and having
• an outer surface;
• a front notch being defined longitudinally in the outer surface of the guiding tube;
• a rear notch being defined longitudinally in the outer surface of the guiding tube and kept from communicating with the front notch;
• a front groove being defined around the outer surface of the guiding tube, communicating with the front notch and having
• a sidewall;
• and
• multiple inclined bores defined through the sidewall and extending toward the front end of the barrel;
• and
• a rear groove being defined around the outer surface of the guiding tube, communicating with the rear notch and having
• a sidewall;
• and
• multiple inclined bores defined through the sidewall and extending toward the rear end of the barrel.