39, 59 and all their DA 9mms readily interchange on holsters. Though when that bloody 59 came out we had to accommodate that insanely big slide stop.

Which reminds: on the evidence NO automatics have ever been designed with holsters in mind. I do believe though that the heavily chamfered front faces of some revolver cylinfers and their sights, were specifically chosen for holstering. SAA comes to mind.

If automatics were designed for holstering then they would have something incorporated for securing them, hey?

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Red Nichols The Holstorian