I'd say consider a Glock 19, or Glock 17. Carry it with a quality belt and holster and the weight will be a non-issue.

I carry a Glock 17 more than anything else when I'm outdoors. 147s at 1100 fps. I like the Wilderness Tactical Instructor belt, and of late have been using a Blackhawk Serpa holster. Word on the street is the Serpa is not the best holster for MMA fighting. I find it a very good holster for my uses.