Folks, it is written that perfect knowledge casteth out fear... Sorry, I've not found an SKB factory manual for the Model 100
The inertial trigger has quite a few parts. Number of related springs...
SKB Model 100 Action Parts is my crib notes. SKBshotguns has a decent amount of action parts as does Numrich.
UPDATE: My, my. Looks like the
SKB Model 500 used the same trigger, but also used a Trigger Adjusting Screw and a Trigger Adjusting Nut. I do
NOT suggest that everyone runs out and retrofits SKB SxS triggers. I've never noticed an issue with the non-adjustable trigger.