I have, and need, no better excuse than that for this:
I have no idea what you are talking about.
None at all.
In all seriousness, this is far from an every-day carry rig, for a variety of reasons, but the TT-33 is far from an every-day carry firearm, for a variety of reasons as well (most notably its complete and utter lack of anything even approximating an “internal safety”). However, there is something particularly compelling about putting a firearm in like that in a holster like that. Obviously it is not a perfect rendition – for instance, the thumb break was impossible with a semi-automatic firearm, and the direction of the buckle on Mal’s rig bugged the hell out of the guy who made mine, so he turned it around – but I dare say it gets the point across.
If you want one of your own, contact Mark@Sea at “oldradartech (at) hughes (dot) net”; he can obviously make them for TT-33 platforms, even ones with the whacky-arsed muzzle brake attached, and I imagine you could talk him into something similar for 1911s or a couple other different firearms as well. From what I understand, this rig design is better-suited for revolvers than semi-autos, if that makes a difference to you.
(Union of Allied Planets Standard Mineral Claim Form borrowed from here, in compliance with their Creative Commons licenses. ‘Verse money borrowed from here.)
(Thanks to Better Half for the latter two pictures.)