I have a MK VII in 357 mag. Holds a few more rounds and its ALOT cheaper to shoot. Its absolutely fun to shoot. hardly any recoil, extremely accurate and a lot of noise and flash. People will say there not reliable but I call BS on that. They just like to be held onto very tight. Tighter than most. Is it practical not really maybe if you handgun hunt. Are they carry piece Oh god no. Is it cool awwww yeeaa.