well i was cleaning the gun took out the bolt and spring and all those little thing in the gun(im a noob so sue me

) well i put it back togethor and decided to unload a few rounds and kapoot, the paint would simply roll out of the barrel some gas was released but it didnt have an affect on the paint as it only flew for about 2 or 3 feet, any advice would be appretiated.
oh almost forgot its a spyder imagine