It's a nelson type marker, so right away it you know it will be easy.
It could be that the adjuster on the bolt is broken. If the marker still cycles and fires smoothly, buy a CCI or an Autococker spring kit and change the main spring to achieve the proper velocity. If it doesn't fire, just order a new bolt assembly from Mike at CCI, it's item 22 on the parts list.
Last edited by muzakx : 08-15-2009 at 08:21 PM.