well i have had my SP1 for about a year now, first of all it was working all good, shooting well ECT.
it has been sat under my bed for about 3 months now, cleaned it all up, lubed and so on.
and give it a blast, but air seems to be rushing out of the barrel area!
i never use this gun so my guess is a o-ring in the bolt or the chamber area.
because i have not got the time for this gun (due to college and exams ECT) so i may sell it on the for sale section.