I'm tempted to get one for my Glock G-20 10mm, but don't know anything about them. Thought I'd start a check here first. Prices start a little over $400 and I'd like a 10mm carbine. I currently have a KelTec Sub2000 in .40 S&W and it's fun to shoot. It gains about 200 fps over a G-22 pistol. Based on that, the MecTech should give 180 gr. medium 10mm handloads about 1350 fps, a respectable load.