Bought new 1 year ago and used it once 9 months ago. Tried to use again tonight and looks like an o-ring blew out of the sleeve that slides. Wasted a 25 gram Specialized tank. Thought maybe was a fluke, tried another specialized 25 tank, wasted that one too. Then I saw the pieces of O-ring or grease that blew out. All CO2 leaks/sprays out fast enough to make me though it on the ground so my hand didnt freeze.