So do you want to pick my lottery numbers for me? I would say that is factory original kurz large ring. The radius behind the recoil lug is as it should be, except for a slight flat in the centre. I'm sure this is a result of the larger diameter receiver ring.
A couple of things to look for when you have some time: if you strip the bolt, you will likely find there are no safety lugs on the firing pin. This means it would be possible to fire when slightly out of battery. The other thing is the lugs where the cocking piece attaches. The bottom of the notches should be radiused ever so slightly. The very early, ( or very late WWII ) are not, they are square at the bottom of the notches, and have a bad habit of breaking off where the first notch joins the pin. If your notches are square, not radiussed, I would shoot it sparingly and dry-fire not at all, considering the difficulty of having a new pin made.
If you check the bottom of the bolt, the gas ports will be narrower than on later production rifles.
As an aside, Champlin arms has a few interesting mauser listed currently, including a small ring intermediate action 7x57, dated 1900, and an original kurz type A.
Enjoy your rifle, it's quite a rare treasure.
A couple of things to look for when you have some time: if you strip the bolt, you will likely find there are no safety lugs on the firing pin. This means it would be possible to fire when slightly out of battery. The other thing is the lugs where the cocking piece attaches. The bottom of the notches should be radiused ever so slightly. The very early, ( or very late WWII ) are not, they are square at the bottom of the notches, and have a bad habit of breaking off where the first notch joins the pin. If your notches are square, not radiussed, I would shoot it sparingly and dry-fire not at all, considering the difficulty of having a new pin made.
If you check the bottom of the bolt, the gas ports will be narrower than on later production rifles.
As an aside, Champlin arms has a few interesting mauser listed currently, including a small ring intermediate action 7x57, dated 1900, and an original kurz type A.
Enjoy your rifle, it's quite a rare treasure.




















































