If you own a SureFire M5(xx) Dedicated Forend WeaponLight, a M9(xx) Vertical Foregrip WeaponLight or a M96(xx) Millennium Universal WeaponLight, you can convert it to dual LED brilliant write light and invisible infrared illuminator with this conversion head from SureFire. The bezel selector ring allows you to easily switch modes, and self-locks into place on the selected output until you decide otherwise.

The KM4 uses ultra high efficiency LEDs that are virtually immune to failure and SureFire's TIR lens that produces a tight beam best suited for close to medium range engagements.

Specifications and Features:
Aircraft aluminum construction
Mil-spec hard anodized
O-ring sealed
Coated and tempered TIR lens
Max output white light 150 lumens
Max output infrared 120 mW
Tactical runtime 2.5 hours
Overall length 3.8"
Bezel diameter 1.37"
Weight 3.1 oz
Black