fjrdoc
I'm not at all knowledgeable on MS's, so your extra firing pin nut holds the new rear sight - so it must be modified to then hold the rear aperture, was it then brazed on?
Is the Sportarget made of brass & if so how do you 'blacken' it?
Wonderfully done indeed mate, well above my skill level!
Looks like it truly belongs there, fantastic work!