With a frame mounted red dot it will be hard to get a standard holster. You didn't say what this is getting used for but most competitive shooters would opt for a race type holster for a TSO/TS2.
The double alpha alpha x or flex holsters are a top choice.
I'm sure there is a custom kydex maker that would make one of he had the gun but I don't have a recommendation.
Cheers,
Toby
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