well my my QB79 quite on me the vavle will not let co2 go out.

I see the firering pin move and hit the vavle but nothing happends I did many test and it seems like its the vavle.

now I need to know how ezzy is it to fix. and I will need a seal kit to do this?

I will fix this QB79 since It was shooting quater size grooping at like 40 yards and I was still setting the scope,
this QB shoots at 766fps on co2 and the grouping was awsome.

I been having lots of trouble with this thing but I dont know why I love it.
probably because I love underdogs that come out winning. but it's losing now.

it's been un reliable. /SAD