Found beat up German Luger dated 1911

[Mk VII]

It got sent back to have the hold-open added at some point, which many (but not all) did.

[Abesplace]

With the original magazine it does not when I use the mecgar magazine it goes in to open position. I think the original mag is screwed up it’s in bad shape lol.

[Patrick Chadwick]

Note the precise style of the marking - the Imperial German Army was very picky about this!

R cursive
.
S
.
2 (slightly smaller font size than the S)
.
186 ( slightly smaller font size than the 2)
.

In which case, the interpretation would be Reserve Sanitäts (= medical and sanitation) -Detachement No.2 Weapon No. 186

As a weapon for a medical detachment - i.e. strictly for self-defence only - it would have hardly been fired at all - hence the condition of the barrel being better than one might expect.

[Mk VII]

Any pre-1945 magazine seems to be priced at three figures these days, even the East German ones, - and the MeC-Gar ones will probably work better.

[browningautorifle]

and the MeC-Gar ones will probably work better

Absolutely. Easier to get too.