Smith and Wesson Sigma SW380. Small enough to fit in uniform pant front pocket. Elbeco is the company that manufactures the pants and the pockets are roomy enough. I use a pocket holster that fits the weapon and sticks to the interior of the pocket when I draw the weapon. Loaded with old Winchester "Black Talon" ammo and new Winchester Ranger. Sad to say that the gun was stolen in a burglary of my personal vehicle recently.
Glock 30 is my main off duty carry. I always carry an extra Glock 21 clip on my person when I do though. Always carry a S&W Airweight on my ankle when I am wearing pants. Although I do sometimes carry a Bersa Thunder 380 but usually only when I am wearing shorts and a t-shirt.
Never know what might happen. Better to be prepared than not.