I am going to place either an INFORCE or Streamlight wepon light on my Glock 19.
1. Any advice on which light is better?
2. I intend to have a Kydex holdter made after I install the weapon light. Any drawbacks to this idea?
I think the common complaints against any of the Inforce lights is that they break under "hard use", but from what I've heard, especially for the lights you mount on rifles or long guns, the stories are actually people accidentally ramming the lights at full speed around corners because they were unaware of their lights as they turn and enough times, of course it can break. Simply dropping it won't really hurt it though
not sure why you would try to see if you could break your TLR unless your made of $ ha.
It's only one anecdote, but after I read about Streamlights breaking, I mounted a TLR-1 on an inert Glock 17 copy and banged the light on the top and edge of a heavy table for a few minutes one night to see if I could break it. I failed and it still works (looks a little different though!).
The battery doors seem to be the only real weakness. The ones I had break were all attached to a Glock 17 (the same on, actually). The god part is the trigger guard kept the battery door mostly in place so they still worked. That wouldn't have happened on the ones I have mounted on rifles, but I haven't had ether of those fail (other than getting turned on while bouncing around in the trunk and going dead).
The doors are readily available and not expensive. I still like the TLR1s and they keep making them brighter.