My advice, stay far away from those 12 round 45ACP UPS mags. Beside being $160 a piece, not a single one was made before the mag ban that did not go to the military. According to HK, 100% of the hi-cap 45ACP mags are contraband, stolen U.S. Gov't property. You and you lawyer may win this battle if it ever goes to court but, it will make those $160 dollar mags real expensive.
With regards to the EXPERT, it is basically a 45ACP IDPA gun like those Glocks. Had I not stumbled into a MK-23/SOCCOM at an attractive price, I would own one of those now. I have seen very little of the developement lavished on the 45ACP variants flow down to the 9mm/40S&W. I think it is a numbers thing (and a lack of hi-cap mags in general circulation, after all who really wants a 10 shot double stack 9mm HK when you can buy SIG P226 mags for $40 which is what the post-ban 10 round HK mags run), 9mm/40S&W HK USP are slow sellers, especially in the U.S., home of the 45ACP, and there is always the good fortune that follows with the adoption of the SOCCOM/MK-23 by the U.S. Special Forces guys.
Sid
[This message has been edited by Sid Post (edited August 30, 1999).]