The JIT is one of the most versatile and underate holsters around. I have two, and between them, I've carried 9 guns in them.
One is for a K frame S&W: fit my M10, 64 and 67.
The other is for a S&W Sigma: fit my Beretta Vertec, Ber. Centurion, Glock 19, M&P full size, M&P Compact and M&P .45. All of these guns fit securely with no wiggle and the trigger remained fully covered.