A couple of years back, our department bought and supplied a group of TLR-2 lights that we put on our Glock 22 and 23's. We immediately had issues, with FTF in many guns. WE then re-did the springs and followers on all the mags, and recoil springs, etc. The problems seemed solved, except the Glock 23's never worked right with the light. At the time, we were working with the Winchester Ranger 180 gr JHT (NON-T-Series). About a year later, we switched to a better round, the Federal HST 180 gr. Now we are seeing the jams again, generally it's during one-handed firing. I personally bought a M-3 light from Insight Technologies, and never had an issue with either ammo. I wonder if the metal TLR-2 is so heavy it causes the issues, while the lighter M-3 does not. I don't know. Can anyone out there share if their department had issues with the lights/pistol combo? If so, what did you do to fix it? Thanks all.