The 46m was my first competition pistol, and it won me a few local matches. An excellent air pistol though too heavy for me, so I set about making it lighter. Managed to get it down to 1070 grams before I moved on to a Pardini pistol. This picture shows my finished 46m along with a stock pistol for comparison.
http://www.luthier.ca/other/forum/46m.jpg

I detailed much of what was done in this thread:
http://targettalk.org/viewtopic.php?t=46632&p=221299