BMAG trigger diagram

Got a SSHB BMAG in March of last year. Bore sighted it and it shot well enough after half a box of shells. Took it to the ranch several times and never shot it again until this last weekend. My Accutrigger blade is binding in the trigger so much it wont allow pulling the trigger without using sideways finger pressure to unbind it. The blade rattles in the trigger groove. I'm pretty sure it can be fixed with a small spacer/shim between the blade and trigger. My problem is I'd like to have a diagram and part numbers in case a spring goes sprong across the room. The Web is full of Accutrigger teardown Vids but those look nothing like what's on my BMAG. Any leads on a good Vid or diagram? THX in advance.