Barrel for paint ball guns

Abstract

A barrel of a paint ball gun includes a bore defined therethrough and the barrel includes a front part and a rear part which is connected with the body of the paint ball gun. The front part has a caliber larger than that of a paint ball and the rear part has a caliber smaller than that of the paint ball. A plurality of spiral grooves are defined in the rear part to increase stability of the paint balls and the distance the paint balls can treavel. The front part includes a plurality of apertures defined through a wall thereof so as to reduce noise when the paint balls shoot.

1 . A paint ball gun comprising:
 a body and a hose connected to the body so as to be adapted to connect a pressurized air bottle, a handle connected to the body and a trigger unit connected to the handle, a tube connected to the body and a hopper connected to the tube, and   a barrel connected to the body and including a bore defined therethrough, the barrel including a front part and a rear part which is connected with the body, the front part having a caliber larger than that of a paint ball, the rear part having a caliber smaller than that of the paint ball, a plurality of spiral grooves defined in the rear part.   
   
   
       2 . The paint ball gun as claimed in  claim 1 , wherein the rear part includes an enlarged opening in a first end thereof which is connected to the body. 
   
   
       3 . The paint ball gun as claimed in  claim 1 , wherein the rear part includes outer threads at a first end thereof where an enlarged opening is defined, a thickness of the rear part between the outer threads and the enlarged opening is thinner than the rest part of the rear part, an insertion portion is defined at the rear part between the outer threads and the enlarged opening, the insertion portion is inserted into the body. 
   
   
       4 . The paint ball gun as claimed in  claim 1 , wherein an extension section is formed at a second end of the rear part and includes a smooth inner periphery, the rear part and the extension section form a first section and the front part forms a second section. 
   
   
       5 . The paint ball gun as claimed in  claim 4 , wherein the first section and the second section are threadedly connected to each other. 
   
   
       6 . The paint ball gun as claimed in  claim 1 , wherein a plurality of apertures are defined through a wall of the front part.