1915 DWM shooter - a little advice please

[Stu]

Just checking over a very expensive impulse buy, which is my first artillery. DWM 1915 ser # 4501 a. Matching #'s but the refinish wiped out the proofs and most of the sideplate number



I was hoping for some advice on the following; the rear sight ladder only requires very modest pressure to lift, does this indicate a worn out spring ? Does the securing pin on the sight ladder need to be drifted out in a specific direction ?

The repro grips have to go, but a pair from a 41 byf are simply the wrong shape. Is the frame shape between Mauser, DWM and Erfurt different ? I'd like to find out what period / make I need to search for.

The magazine that came with it is a nice condition rolled blued se/63 ser # 3124 s. I'd like to trade this for some repro wood bottomed mags or better grips but I've no idea of the relative values; any advice ?

I'm also looking for a fine tune screw for the front site, I don't think Mr Heller has one, any ideas where else to look, (gunparts, sarco etc don't have them listed).

I have to confess I really like this gun, but have to resist the urge at these prices

Thanks in advance for any help, Stu

ADDENDUM: Well, I worked out what was wrong with the rear sight; I believe there should be two projections on the underside of the adjustable slider that run under the rails formed on the top of each side of the base. These would prevent the sight from rising away from the base.

Could anyone confirm this diagnosis please ? I suspect I'll have to return the gun, most unfortunate.