There is a thread on Jan's forum of a 'snub nosed' Gasser that looked pretty neat; barrel chopped back about 1 1/4" (to ejector abutment), butt shortened 5/8", and new front sight installed to barrel...
http://luger.gunboards.com/showthrea...ast-amp-Gasser
Here's a pic of it...(First pic)...
Second pic is what I would do to the trigger guard (in addition to barrel chop & grip shorten) if I were to convert one...

(These trigger guards are enormous)...
I plan to have a lot of free time on my hands come December, and am looking for another Gasser (or Rast & Gasser) revolver, either to convert or a better one and I'll convert my present one...