I actually ran across this on another forum, bought one at Wally World, tried it for my Walther P22 to have something to take to range and plink, and it worked perfectly. You can even slip an extra mag in the carrier. I was straightening my range bag, and decided to see if my wife's Taurus Slim would work in it...YOWSERS!!!! It did!! Now my wife has a holster for range time as well. For $7 bucks it's kinda hard to beat. Just thought I'd throw it out for consideration. I did order a Don Hume for my P22 and as soon as there is a little bit wider variety, will order a leather holster for wife's Slim..but for now..got it covered with this:

Crosman Airsoft Pistol Holster. TACTICAL GEAR, HOLSTERS, MAGAZINE POUCHES.