Me and my friend decided to get into paintballing so we each bought a Tippmann Cronus. My friend ended up moving away and because I don’t have anyone else to play paintball with I decided to sell my gun. I was dry firing my gun to get out all the co2 so I could mail it.the co2 tank wasn’t quite empty yet and all of a sudden the cock handle started jumping back and forth and wouldn’t stop till I stopped it with my hand. I took a break because the tank was getting icy and I didn’t know if that had anything to do with it or not. When I came back, it still did and it kept doing it till it was empty. Does anybody know if there’s something seriously wrong with it or is it safe to sell like this?