I shot the 5.25" version of the 10mm today, and it shot really well - love it. It was my buddy's but I'll be getting one for sure now.
It was shooting low left, but the nice adjustable rear fixed that right off. The 5.25" one just has an all-black rear notch sight (no dots on the rear like the 4.5" version), and a fiber optic front sight.
It's the perfect all-purpose gun. Finally, at long long last, a quality lightweight 10mm. What took them so long?
This is a winner that they will sell a bazillion of. The 10,000 round no-failure test is very impressive.
With medium-hot handloads, it was kicking the empties a good 6-7 yards, so a heavier spring is in order for buttstomper loads.
Oh yeah, I also got to hold (but not fire) a real Glock 18 today. It was a good day.