The cylinder isn't the problem. The bbs seem to get stuck in the hop-up unit.
I just noticed when loading one bb at a time that the nozzel doesn't seem to be going back all the way every shot. About every third shot the nozzel will go far enough back to let another chamber. Would this be the tappet or a timing issue?
Upgrades so far are:
Guarder Air Nozzel
Area 1000 piston and piston head
Guarder Spring Guide
TN Tightbore
Prometheus SP100 spring
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