A tip on how to open the magazine floor.
Almost universally, 1930 has super tight magazine floor, especially when it's in relatively new condition. Most of them look fine everywhere, except one big scratch or two on the magazine floor. Unfortunately, it's a numbered part and must be checked.... and you don't want to scratch anything. Here is one way to open it:
0) Of course, always make sure the gun is unloaded;
1) Remove the firing pin, bolt stop, and drag the bolt out;
2) Wrapping the whole barrel with tape (plastic transparent postal tape works) to protect the barrel from scratching in the next step;
3) **** the hammer and push up the lock frame latch. Use one finger or wood stick to push down the magazine follower from the ejection port, then carefully push the upper barrel assembly off the grip frame. In this step, it's almost impossible to avoid magazine follower running against the barrel, but the barrel is protected by the tape;
4) Remove the trigger spring, and magazine floor latch;
5) Now, nothing locks the floor anymore. To overcome the tightness, use two thumbs to push the floor off without using any tool (only thumbs). Still takes considerable amount of effort, but it can be done.
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