1942 BYF Mixmaster won't shoot!

[John Sabato]

Originally Posted by DonVoigt

Yes to what Kurusu showed.
Sometimes the ejector binds in the slot, you may have to remove it and do a little fitting with a fine file.

This occurs most often with aftermarket ejectors, but could plague any Luger.

I wouldn't use a file for this, no matter how fine, it will be difficult on such a hard part as the ejector.

A fine grit emery paper on a known flat surface (such as glass or machined steel) will work wonders on polishing the contact surfaces (top and bottom) of the ejector until it moves smoothly in the upper receiver.

Also check the breechblock for burrs in the ejector slot that might inhibit free movement.