Not totally sure but here goes...That pin and spring keeps tension on the bolt assembly. You can do the same thing with a helper spring behind the firing pin. You need to talk with more experienced people. Gunsmiths very good with Suhls: Gene Davis, Jim Peightal, Richard Gorham. Jim is on these forums often.
Last edited by vlnbyr; 04-18-2019 at 08:12 PM.