I've used one of these for a long time https://www.pistolpackaging.com/Bandito_Shoulder_Belt_p/bsb.htm

Then I would use the shoulder part and have a holster made for what ever gun and attach it to the shoulder part. Worked pretty well.

I've misplaced that system and now I use the Diamond D Guides choice. You can change holsters on that, but I have a couple of them any way. Both will serve you well.

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