The FM79 Infrared Filter Assembly from SureFire is a swing-open infrared filter that is designed exclusively for use with the HellFighter 4. This clamp-on infrared filter cancels out the visible non-infrared portion of the light beam generated by your weaponlight. The resulting smooth and perfectly-focused IR beam is visible with NVDs and infrared-capable video cameras.
Thumb pressure on the locking tab releases the cover, and a spring mechanism keeps the open cover flat against the flashlight's housing. A locking lever keeps the entire unit securely attached to the weaponlight.
- Compatible with SureFire HellFighter 4 only
- Locking lever keeps filter securely attached to weaponlight
- Provides secondary protection to weaponlight lens window
- Delivers a 1000nm IR output with a very low visible signature
- Made in the USA