well the co2 thing was very complex to coplex for me so i found something for 16/12gram co2 cans that uses no drilling no glueing and no epoxing it is this
u just hitch it to a shrader valve and ur done u can get it a REI or at ther site
http://www.rei.com/online/store/Product ... rn=4500856 i updadted the link
this is untested untill next week and i am not liable for any crasy crap u do ok i also recomend having a psi meaterediti whent to REI yeaster day and found for 25 $ or 20 $ u can get one that is a lot better that that pice of shit this one can use any co2 thing threded or not u can get one with a meater on it too for an extra 5$
