What is a good CCW gun?

Guns are best picked out by the individual so I will just tell you what I carry and the reasons. I carry currently a Glock 27 gen4 sub-compact that features a 9 round magazine chambered in 40s&w. Glocks have a great track record of reliability and I have never had an issue with any of my Glocks. They are easy to clean and disassemble,parts are cheap, and they are very well made. Your best bet is to go to a gun store and hold a few guns and test them out if the gun store has a range. The gun store will usually let you shoot it if it is already used. This way you can also get a feel for what caliber you like. My gun cost new around $550