i just got a old stingray that didnt work from one of my buddies. it leaked co2 and wouldnt fire. i took it apart and cleaned all the parts and put new orings in and now it it doesnt leak anymore. the problem now is when i shoot it doesnt recock its self i half to pull it back again.. ive tried everything i just dont know what to do. will somebody give me some suggestions of what it could be. maybe i have the parts in wrong but im almost positive there in right.