Shoo,
I know you asked for pistol recommendations, but I would suggest a Mossberg 590A1 (models 51663, 51668, or 51520) 12 gauge with a side mounted adapter that fits these models and accepts a 1" diameter light. Look here at the second item from the bottom of the page:
Rifle Accessories 410 Shotgun Barrel Shooting AR 15 Gunsmith Tools 410 Shotgun Accessory. With a blaze orange ramp front sight and ghost ring rear sight, this combination is potent. I have one in my bedroom. I hope you don't mind me recommended something other than what you asked for.
Bullseye