Have a early prototype John Martz 45 Luger, he made it to use 1911 magazines and I have one that came with gun.
My problem is lips were all bent and the base and follower he made only lets 4 rounds in.
Made my own base and bought a different spring and follower that let it hold 6.
Worked on lips for 3 weeks and can load six, first one always pops out of gun when cycled to chamber, after that the other 5 feed good.
plan on making a few more mags from newer mags, anyone have suggestions for cutting or grinding the spring steel on the magazine?