I upgraded my weapon light while still in police work to a TLR1. On my duty Glock 22 it was fine, the uniform holster was made for it. I was teaching tactical pistol at the time, and my pistol there was my private Glock 23, I bought an outside the waist band holster for the gun and the light to teach the class.
I'm retired now, I kept the light on my G23 and it sits in a ready bag near the bed. Except for range use, or in the woods. it just isn't as concealable as even the bulkiest concealment rig without a light.
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