I have a JP Sauer 20ga side x side and am having issues with the firing pins sticking out in the fired position protruding into the primer. The pins do not seem to retract resulting in having to break the breach open pretty firmly over your knee. Any guess as to what might be causing this problem? Is this shotgun in need of internal cleaning and is this fairly easy to do or is the dissambly something only a competent gunsmith should attempt?

Thanks for any advice

Mike