I could not find a Martini rear sight, so I decided to go with the shortened FN carbine sight.
(5) Rough chambering for 7.65 Parabellum pretty much finished.
(6) Cutting back the shoulder for sight base 'sleeve' mounting.
(7) Sectioning the FN carbine rear sight base/sleeve.
(8) Shortened FN carbine rear sight base/sleeve, shortened barrel shoulder.
(9) Barrel re-tapered, rough cut.
(10) Taper section polished, muzzle tip turned down for threading.
(11) Front sight base blank being faced off.