The 10mm is one of my favorite handgun calibers. I had three until about a week ago when I picked up my 4th. About two years ago Springfield Armory started advertising their Range Officer in 10mm. I have been looking for one since and came across one on Gunbroker. It is the Ranger Officer Elite Operator and is exactly what I was looking for. I added a Smith & Alexander Flared Magwell/Mainspring Housing and a Streamlight TLR-2 LED Light/Laser. I plan to primarily use it for home defense and just general shooting.