The SureFire 660L LED Classic Universal WeaponLight for Colt M4/ Car15/M16 is an effective way to mount a lightweight, powerful Weapon flashlight to the barrel or gas tube of virtually any rifle or carbine.
The SureFire 660L WeaponLight utilizes a solid-state LED while the SureFire 660 WeaponLight features a shock-isolated, high-output incandescent lamp. The 660L LED Weapon-Light by SureFire includes mounting hardware, an XM tailcap, and a pressure- activated tape switch with a seven-inch cable. Optional covers, and diffusers are available to fit with this SureFire WeaponLight. The SureFire 660L LED Classic Universal WeaponLight is designed to mount directly to the barrel of a Colt M4, Car-15, or M16.
NOTE: Infrared filters cannot be used in conjunction with LED WeaponLights, as white-light LEDs produce negligible infrared radiation.