On Duty is Sig P229 .40. It shoots fine, but the trigger pull is a heavy DA/SA and some of our folks have difficulty with that. I hated the stock grip so I added Hogue grips and it's much, much better. We'll be moving to 9mm in the next year or two.
We also carry a Remington 1187 and a S&W M&P 15. We have a couple .22's for critter duty also.
My current off duty is a S&W Bodyguard 380 with an extended mag; it shoots very good for a small pistol.
Us too, we are transitioning to Glocks in a few months. Should be interesting. Easier trigger pull than the 9lb Sig.