Hi everyone. I have played around alot with the 19 and 17. However, I find myself in a situation where I am required to cary a 40 or 45 caliber handgun for a job. The requirements are the company standard and if my XD were in one of those, i would cary it, but its in 9mm. My question to you all is what models should i look at? It needs to be a 3-4 inch barrel. Besides that and the caliber there are no guidelines. What do you recommend?