Leak out back

[redmagik]

I have a really old mag. I boight used in the early '90's. Not sure what lvl I think 7. Any way, I recently switched to a nitro tank played one day worked great. Now the gun gasses up fires 4-5 shots and doesn't recock and leaks air out the back....? HELP PLease!

[brianlojeck]

depending on how long it's been since the gun has seen use, I'd do the following:

1: get a new regulator piston. the old ones are not meant for use with HPA tanks, and vent out the back of the gun needlessly

2: get a parts kit, and replace every soft part in the gun (makes it work like new generally)

3: oil the crap out of all the orings when installing them.