That does appear as the "Shorty-Forty 2000" we had here only the sides of the slide were polished back out stainless for a two-tone look. The guns are well worth $1,200 US, but seldom bring that when they show up sold. If your loading 10mm then all you really need is to switch to the small primers and crank things down, OAL 1.135" max or you'll have feed problems in the mag tube.