if it'll work for the colt mustang, it'll definitely work for the 238.
i'll ask, though, why you'd use a pocket holster with a slippery exterior. i actually stupidly bought a don hume pocket holster for my g27. while it's very nicely made, the holster comes out as well when i draw.
my cheapie desantis pocket holster stays in the pocket when i draw. better choice imo.