Thread Killer Inbound...
This is Detective Mike Lowery with his Back Up Sig P232 in a "Small of Back" holster. You can still readily find them online, easily through Google>Shopping (they are usually very expensive); though they are not nearly as popular here in the future as they once previously were due to a few reasons that are obvious to anyone who has carried this way.
1. It is uncomfortable to carry anything but a very small weapon back there. The weight pulls directly down and puts directional pressure on your lower abdomen. Being an OWB (outside waist band) holster, it also requires a very tight and weight retaining belt.
2. It is very difficult to conceal anything OWB of any size larger than very sub-compact. Even though it rides particularly high, the ability to conceal it will be diminished by it's very location.
3. When you carry your weapon so far behind your peripheral, it is much easier to be disarmed. Someone behind you can grab your weapon and it is extremely difficult to perform a proper retention reaction. The further you reach behind your centerline, the more off-balanced and weaker you become. This makes retention a very real problem.
4. Safety of yourself is a problem. There was a regulation circulated to many US Police departments in the late 90's that barred handcuff pouches from being carried at the 6 o'clock position on an officer's duty belt. This was a reaction to a brash of spinal injuries reported by officers who had been in physical struggles with perpetrators or who had even stumbled and fell on their backs. This direct impact puts sharp pressure on the lower spine and often is the main culprit behind a debilitating spinal injury. Having a gun here would prove even more debilitating.
If you really like this holster setup, then more power to you. Whatever gets people to carry their guns more, I'm pretty much automatically behind. But you have to be aware of the pitfalls and restrictions that this method of carry brings with it. If you accept them and decide to do it anyway, then I wish you the best of luck. Just be safe and careful.
Lord knows Frank Castle (Tom Jane) has one for his staple Colt 1911.
And Castor Troy (Nick Cage) has a couple for his pair of custom Springfields.
Just so you know... and just to offer some real help, without criticism (fellas).
~LT