Tell 3 pistol disassembly- the back pin?

[Lawrie Amatruda]

Without taking my one apart again, I think I rembember that there is a small slotted screw you need to remove, which is accessed through a small hole on top of the cocking linkage and just forward of the cap at the back, I don’t remember having to remove that pin that has been discussed, be aware that the grip is very fragile, I think it could be made of Bakelite, which over the years degrades. The one you have that shoots weakly, probably has a broken flat section piston spring, I repaired one a few years ago with the same problem, but was lucky at that time I had contact with a guy in Sweden who sent me one,I think his name was Bo Fred I have lost contact with him now.
Cheers, Lawrie.

I have had second thoughts about that little screw, If I remember, it is a trigger adjustment screw, but I still don’t remember having to remove the pin at the rear to remove the plug.