firmie54

This would be my first hand gun purchase, is this "newbie" friendly or is it something I should wait till I have some more experience?

So I was at the local shop today and I came across one of these and I was just curious as to how good they are. I have never seen these before or heard anything about them, so I am kinda flying blind. I know there has been some good reviews and some bad ones in some searching on the internet. Is it true that you can get caliber changing kits for these? Any and all information on the firearm would be greatly appreciated.