I'm getting this blata 2.5 in a trade Saturday and i know to look for blata in the casting on the motor...what else should i look for? And the guy said it comes with some kind of co2 kit? Looks like a air filter with a tube running to a trigger to shoot co2 in...what exactly is that? What's it worth? i was going to turn around and sell it but i think i might keep it! What's a good website to get parts for it? Especially cosmetic parts lol thanks ahead of time for the help guys!