Boy could I use some help. I am wanting to buy a compact to carry and can't decide on the 9mm or the 45. Then I see all the choices, Colt, Springfield, Kimber. I just looked at the Colt Defender, seems like maybe that ought to do the trick. What do you think? Then I've been told 45 is what you need. I think maybe it's to much gun to be carrying, weight wise. I do know that I want a compact, a 3" barrel, combat trigger. I need your input???? Thanks