The Insight M4 Tactical Illuminator has maximum output of 90+ lumens. Insight M4 Tactical Illuminator contains a xenon filled, tungsten halogen and its range is 25 meters. It can work with in the temperature range of -32 degree to 65 degree Celsius. It weighs 4 oz. with the batteries and its dimensions are 3.4" L x 1.4" W x 2" H. M4 Tactical illuminator is powered by 2 Lithium Cell Batteries and its run time is minimum 60 minutes in continuous run. It has standard 6 Volts DC systems. It can be quickly and easily attached or detached to the guns. Snapping on or off the rail with in 2 seconds makes the M4 illuminator the ultimate option for the people who want both power and performance in white light illumination. M4 Tactical Illuminator has instant on switch. The M4 Tactical Illuminator is well matched with S & W's SIGMA model "E" series.

Insight M4 Tact Illum S&W Sigma

Fits the S&W Sigma's proprietary rail. Smith & Wesson Sigma E pistol must have mounting rails for this tactical light to fit

Insight Technology M4 Tactical Light Tactical Illuminator S&W Sigma W/ Rail

The M4 Tactical Illuminator is compatible with S&W's SIGMA model "E" series. (It fits the S&W Sigma's proprietary rail.) Snapping on or off the rail in under 2 seconds, makes the M-Series illuminators the first choice of individuals who want power AND performance in white light illumination. The instant-on/steady-on switch is a standard feature on this 6 volt powerhouse. The M4-Pro offers an optional safety switch and remote switch capability not included on the M4.