I picked up a nice 1871 Mauser CARBINE that is regimentally marked for the 6th Ulan Erazats. The carbine is in nice original condition, but is missing a rear sight, and front swivel for the sling. The rear sight base and spring is intact, but the screw that holds the sight and the entire sight is missing. The front band for the swivel is intact, but the screw and swivel is missing. I am looking to buy these parts - if anyone has them, or if you can point me to a source who may have them. I am more than willing to pay a fair price for these parts. Any help is appreciated.