Many collectors on here will frown at 'modifications' (more so on Jan Stills forum, they are more 'staid' meaning dyed in the wool types, I mod at both).
I have always felt that different is okay
I had this done for me by GT Tomack
The top one is the one done by GT
the next are some long barrels (he put the barrels on) and the bottom was a nickle plated 4 inch bull barrel I used to own....
And my first luger, an 8 inch Erfurt Artillery with stag grips. Can only find a picture of the grips right now...