I must add my opinion too
I received my Luger with 2 mags but one was damaged, so I ordered 2 Mac Gar magazines, they were alright but the last few rounds would mostly jam. I sent them to GT and about 3 weeks later I got them back with new springs and a wood bottom. They look great, even with a tiny G.T. engraving at the bottom
and they shoot better than the good Mauser one.
I will get 2 more from G.T. in a few months