[sheepherder]

I found an illustration of what looks similar...Doesn't look too difficult to make...

But is the plunger and spring still in the breechblock??? The pic looks like it is...And I don't see anything to hold the extractor in place...Is there a hole for a retaining pin or something???

Also, Sturgess & Gortz show a purpose-barreled Luger with that conversion on a similar barrel...