Just guessing but it should work for both, as the bottom of the holster is open. Barrel will protrude a bit probably. Recommend going to their website and giving them a call.ScottJ, Thanks! The holster you recommended looks awesome. The XDM OSP I have comes with 2 barrels: 4.5" non-threaded and 5.3" threaded. I can definitely switch out the barrels to the 4.5" so it will fit in the holster, that being said, I'm wondering if there is a holster that could accommodate both barrel sizes. Thanks again.
Have you found a holster that works yet? I would be concerned that the recommended holster won't have enough clearance for the taller sights on the OSP models.ScottJ, Thanks! The holster you recommended looks awesome. The XDM OSP I have comes with 2 barrels: 4.5" non-threaded and 5.3" threaded. I can definitely switch out the barrels to the 4.5" so it will fit in the holster, that being said, I'm wondering if there is a holster that could accommodate both barrel sizes. Thanks again.