I carry a regular 21. Nothing fancy though. It's a gen 2 so I threw a hogue grip on it. Other then that, everything is stock. Lights are too big to CC and aren't gonna do much good in the 1.5 seconds you'll have to draw and fire on your target. A set of Truglo's would be nice to have though, easier on the eyes.
Best advice I ever received: It's better to be tried by 12 then carried by 6.