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Surefire KM4 Weapon-Light Conversion Kit lets you turn your Surefire Millennium Universal gun light into a dual-function flashlight with IR and visible light. The Sure-Fire KM-4 LED Conversion Head is a screw-on replacement for the existing head on SureFire Millenium Universal Weapon Lights. This flashlight head produces both brilliant white light and intense IR output from a single dual-LED emitter assembly, to convert your Surefire Millenium into an IR flashlight. The flash light head features a bezel selector ring that allows you to easily switch back and forth from white to infrared output. SureFire has designed this selector ring to be self-locking so it stays securely on the selected light output, until you decide otherwise. The high-efficiency LEDs of Surefire Flashlights are virtually immune to failure since there's no filament to burn out or break, and provide significantly longer runtimes per set of batteries than incandescent emitters of similar output. The SureFire K-M4 WeaponLight Head features two high-performance LEDs and a precision Total Internal Reflection (TIR) lens that maximizes light output and produces a tight, extended-reach beam with a bright beam center and generous peripheral illumination to assist with situational awareness. And since Sure Fire Millenium Flash Light Head is comprised of two solid-state LEDs (one for white and one for IR), it's virtually indestructible, runs far longer than incandescent lamps—and typically never needs replacing. This flashlight accessory lets you travel lighter since there’s no need to carry spare lamps, IR filters, and you’ll use far fewer batteries
This replacement flashlight head has an O-ring sealed aerospace aluminum body that is Mil-Spec hard anodized in your choice of Black (BK) or Desert Sand (TN).
The full conversion kit includes: conversion head, new head and tailcap O-rings, O-ring lubricant, and applicator brush.