I have had my eye open for a shoulder holster or thigh holster for my 11.5" pistol for a while now. I found a shoulder holster that fits once you open the sewn muzzle end. It also looks as if it is easily adamptable to a crossdraw thigh holster, or standard draw. It is black cordura, and fits pistols with carry handles also. The holster covers the handle to about the rear sights on top and up to the mag well on the bottom side. The top of the FSB just protrudes from the muzzle end. Only problems I've run across is that you have to cut the stitching at the closed muzzle end and resew it at about 1" back from the curve of the muzzle end of the holster to allow the FSB and muzzle to clear and there is no positive retention in the holster other than the grip of the holster on the pistol itself as the top closure strap is too short for now. Oh yeah, and the pistol weighs a ton, but it is fairly well balanced in the holster. I don't plan on concealed carry with it, but as somewhere to stash it while hunting or target shooting it works well. I imagine it could be easily converted to a thigh rig and may do so later if the shoulder harness idea gets to be too annoying.
Oh yeah, it's from Uncle Mike's. I found it at Outdoor Outfitters and the website on the package is www.michaels-oregon.com. The holster is the 8503-1 R/H size 3 Scoped Vertical Shoulder Holster.