These are the OLD, 600 lumen version lights
M600U-Z68Compact and extremely powerful, the M600 Ultra Scout Light® uses a high-performance, virtually failure-proof LED to produce 600 lumens of blinding output, and it continues producing tactical light for 1.5 hours on a set of batteries. This model is identical to the M600 Ultra Scout Light but does not include a remote tape switch. Its output is focused by a Total Internal Reflection (TIR) lens into an intense, far-reaching beam that also provides significant peripheral illumination, making it ideal for close- to longer-range applications. The compact M600 Ultra minimizes added weight, frees up rail space for other accessories, and increases weapon maneuverability compared to larger WeaponLights. It attaches by means of an integral thumbscrew clamp to long guns equipped with a MIL-STD-1913 Picatinny rail. This model (M600U-Z68-BK) comes with an installed click-type pushbutton tailcap switch: press for momentary on, press further to click constant-on. The switch is shrouded to minimize the chance for accidental activation. A remote tape switch can be ordered as an option, or order the previously mentioned M600 Ultra Scout Light, which includes this switch. Constructed of high-strength aerospace aluminum with Mil-Spec Type III hard anodizing for superior toughness and corrosion resistance, the M600 Ultra is O-ring sealed to keep out the elements. And, like all SureFire WeaponLights, it’s built to withstand the rigors of combat. This model only available in Black. Fits: Rifles, carbines, or submachine guns with a Picatinny rail on the forend. (See our Picatinny Rail Forends).
High-performance, recoil-proof LED generates 600 lumens of blinding white light and continues producing tactical-level light (down to 50 lumens) for 1.5 hours
Total Internal Reflection (TIR) lens creates intense, versatile beam with enough reach for longer-range applications and significant surround light for peripheral vision
Construction: Mil-Spec hard-anodized aerospace aluminum, optically coated tempered window, O-ring and gasket seals
Shrouded click-type tailcap switch: click-on/off
Thumbscrew clamp securely attaches to any MIL-STD-1913 (Picatinny) rail
Powered by two 123A lithium batteries (included) with 10-year shelf life