Great design, not many holster choices - SureFire XSC Micro-Compact 350 Lumens Pistol Light

The function and brightness of the light are great. Lockup on my g43x is great. It came with torque specs for the clamping screw. Momentary press will turn the light on until you press the switch again to turn it off. If you hold the switch down it will stay on until you release it. Very intuitive. The light does not need to be removed to change the rechargeable battery. It is hard to find a compatible holster. Safariland’s incogx apparently does and I have a copy on order.