Had my TLR1s mounted on front sight post
Went To TDI last summer for a class last day was heavy on ammo, gun got real hot outside temp was 95 deg 80-90% humidity.
light stopped working near as the low light stuff began.
switched to my surefire kept going...
Got back to camp it cooled off I put new battery in it and it came on however the strobe feature did not work anymore.
So If you do mount on FSP or near gas block might want to watch and make you do not over heat the light..
Last edited by bug; 01-27-2013 at 22:08..