https://www.youtube.com/watch?v=fkmX_lt50pQ

The gun in the video I'd certainly call a trigger plate action.

If the other guns are similar, and just differ in ease of disassembly (ie, you have to drive some pins out or remove fasteners), then I'd still call it a trigger plate action gun if the whole action drops out on the trigger plate.






"The price of good shotgunnery is constant practice" - Fred Kimble