A folding butt carbine

[Fernando K]

Hello:

Now I'm reviewing everything, I see the weapon of post number 13, with screw scree (flint screw) outside the upper jaw, it is clear the channel (channel). The function of the "set screw", would be to keep the screw pedrero inextricably linked (flint screw) to the upper jaw, whatever turns you on to that.

Affectionately. Fernando

[fernando]

Caramba Fernando, ahora te entiendo .
Now i get it
I realized the set(screw) was in a lower position, in order to lock the flint screw thread, with the purpose to prevent it to get loose and allow the flint to fall off.
Now i see that the (set)screw is in a higher position and penetrates into the flint screw 'neck', in a way that the this may rotate but doesn't fall off the jaw. I guess the reason why this is a (set)screw and not a fix pin is that, in this case, you may loosen the (set) screw and dismount the flint screw for maintainance or replacement, when its thread is worn.
I hope this is understandable ... both post text and attached drawing .

.

[Fernando K]

Hello:

Yes, Fernando. Both completely understandable

Fernando K