Very nice Mauser...looks prewar11 so it's had some updates over the years. Bolt is Kar98a (turned down handle...safety got a "red" dot on flag so that's been changed. Trigger has been modified with the adjustment screw. I see the bottom metal is 1909 Argentine Mauser. I would keep the bottom metal and get a trigger that sits further back in the bow. Stock may be a replacement as the barrel retainer is not there however the detail is on the underside of the barrel. A few numbers might clarify things. It's classic piece and I just enjoy it with a couple updates. Ron