One of my Fraternity Brothers is a big guy as well and he conceals a Glock 22 just by ordering big and tall sized shirts online and let's the shirt tail hang out.
I actually did that too, cause I'm on the tall side and prefer a longer shirt for concealing when it is 95 degrees in the shade.
NRA Life Member
Me: "The .45 GAP was an answer to the question nobody asked."
Trooper pal: "Says the guy who thinks .38 Super and 10mm are viable pistol calibers and gets mad when Wal-Mart doesn't have them."