First, the Uncle Mike's pocket holster. Looks like a glasses case, sorta. Size #4 will work perfectly. Around $9 at a dealer near you. These are great; I use one every day.
Second, if this doesn't suit you, check out www.miltsparks.com They have a beatifully crafted, excellently engineered pocket holster. Few holsters are as well made, and none better. Worth the 2-3 month wait.
I have three Galco front pocket holsters, Tomcat, *&* 442 Airweight, and (believe it or not) a G27. They work very well, and Galco's stuff is top quality. www.usgalco.com