I'd have to go with IWB, but a 4 5/8" Blackhawk is a heckuva lump IWB. I like that IWB rig, though, giving me thoughts. LOL Some will say "why" about CCW and the Blackhawk, but I have a good reason, going out to a national park soon, Big Bend, and would like to tote my .45 Colt. However, it MUST be concealed to do so. I figure a .357 is plenty, though.