The SureFire 623LFG replaces the original forend of your Mossberg 500/590 shotgun (with bayonet lug removed) or your Mossberg 500 with 7 ¾" forend tube. It features a high-efficiency LED emitter that is virtually immune to failure since there's no filament to burn out or break. Maximum output is 80 lumens, and it continues producing tactical-level light—enough to temporarily overwhelm the night-adapted vision of an aggressor—for over three hours per set of batteries.

There are three separate switches integrated into the forend: a constant-on rocker switch (left side), a momentary-on pressure pad switch (right side), and a system-disable rocker switch (right side) that locks the light in the OFF position to prevent accidental activation during covert operations, transport, or storage. A molded-in polymer high-friction pad enhances grip in wet or cold conditions.

This product is compatible with the Surefire KX4 LED Conversion Head. The use of a KX4 Head on this product will boost the light output to 120 lumens, with a Tactical Runtime* of 2 hours.

*Total runtime until output drops below 50 lumens