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X300

SureFire's next generation LED WeaponLight is
ultra-compact, lightweight and 110-lumens bright

By Eugene Nielsen


The new SureFire X300 LED WeaponLight is the latest generation of X-Series WeaponLight. It's one of the most versatile weapon lights available. It's suitable for both close-quarters and longer range applications. Front and back view of X300 is shown here along with X300 beam pattern.

Since its introduction of the first WeaponLight, SureFire set a standard by which weapon lights are compared. Surefire has now redefined that standard with its new X300 LED WeaponLight. The X300 takes the Surefire X-Series to a new level with higher output, more run time and a lower price. The new X300 is of the one of the most versatile weapon lights available. It's suitable for both close-quarters and longer range applications.

Utilizing a state-of-the-art, ultra-bright CREE LED, the X300 is over five times brighter than a two-D-cell flashlight. Based on solid-state technology and consuming one-tenth of the power of an incandescent bulb, the LED has no filament to break or burn out.

Recoil is the of enemy of the filament in incandescent bulbs. Filaments are prone to break, especially when hot. The solution has been to shock-isolate the bulbs, which comes at the expense of compactness and light weight.


The X300 shown here mounted on GLOCK pistol, is designed to fit the two dominant rail systems the MIL-STD-1913 (Picatinny) rail and the Universal Standard rail (first pioneered by GLOCK.

The X300 features a new, computer-engineered focusing lens with Total Internal Refection (TIR) focusing that's designed to provide a tightly focused central bream and an enhanced peripheral corona. The special lens allows the X300 to project a tightly focused beam at greater distances for threat identification than comparably sized lights while at the same time producing a wider corona to accommodate peripheral vision.

Maximum output of the X300's CREE LED is rated at 110 lumens by the manufacturer—50 lumens more than the maximum output of SureFires's earlier X200A. It should be noted, however, that Surefire has found that there's a slight variance in output from LED to LED of the same rating. The bezel window of the X300 is constructed of tempered Pyrex glass and has an anti-reflective coating to maximize light transmission.

Run time of the X300 is of 2.4 hours of tactical level light (60 lumens or higher). Sixty lumens is generally considered to be the threshold for an incandescent tactical light. However, as the color temperature of a light source increases, the amount of light required to achieve comparable brightness and visual acuity decreases. The color temperature of the CREE LED greatly surpasses the color temperature of incandescent bulbs.

For many applications, such as those encountered by K9 officers and SWAT operators, more throw is essential. The higher lumen output of the X300 really shines over the older X200 in this regard.
Power for the X300 is provided by two standard 3-volt 123A lithium batteries (included). The X300 features digital current regulation to maintain a consistent light output throughout the useable life of the batteries. Unregulated lights are subject to a steady decline in light intensity from the moment of activation.


Weapon-specific SlimLine (SL) and Dev Group (DG) remote switches for the X300 are available from SureFire for a variety of popular service pistols are available from SureFire. DG switch is shown here.

The X300 has a modular switching system. Several switching options are available. The X300 comes with a toggle switch that has both momentary and constant-on activation. For constant-on operation, press the switch up or down. For momentary activation, press the switch forward.

The toggle switch is ambidextrous and easy to use. The switch is easily operated with the trigger finger in a properly indexed position (Uniform Cover Position) or with the thumb of the supporting hand. It should be noted, however, that there isn't any way to momentarily operate the X300 in one-handed firing until the pressure switch becomes available. There is no disable switch on the X300, although the design of the toggle switch makes a "white light AD" unlikely.

Weapon-specific SlimLine (SL) and Dev Group (DG) remote switches for a variety of popular service pistols are available from Surefire for the X300.


Weapon-specific mounts are available from Surefire for pistols without rails. They allow any acessory for a Universal Standard rail to be mouted to the pistol. Mounting adapter for Beretta M92FS is shown here.

The X Series SL Remote Tailcap Switch and X Series DG Remote Tailcap Switch allow activation of the light with grip pressure for precise control without altering the grip on the firing grip on the weapon. The SL remote switch has a wraparound pad. The DG remote switch has minimal center-mounted pad. Surefire is also developing different switching options for use on shoulder arms.

The X300 is designed to fit the two dominant rail systems, the MIL-STD-M1913 (Picatinny) rail and the Universal Standard rail (first pioneered by GLOCK . Although the X300 was primarily designed for use on pistols, it will fit any firearm with a Picatinny rail. However, it will be more applicable to long guns when the removable tape switch module for the X-Series becomes available from Surefire The X300 is compatible with handgun laser sighting systems from both Crimson Trace and LaserMax .

The X300 mounts on the weapon using either a lever latch (standard) or rail lock (included). The rail lock differs from the lever latch in that it has a bar that slides into the Universal or Picatinny slot, instead of pivoting into with spring pressure. It's a very solid mount, but it sacrifices the quick detach and quick installation of the lever latch.

The X300 ships with the Universal lever latch in place, which will fit most handgun rails. The operator will have to reconfigure the X300 to use the lever latch on Picatinny rails or to install the rail lock. Reconfiguration is easy, requiring only a 5/64-inch Allen wrench (included).


The X300 uses standard 123A Lithium batteries. Lithium batteries have excellent power density and up to 10-year shelf life.

The X300 includes Universal and Picatinny rail interfaces for both the lever latch and rail lock, identified with a "P" for Picatinny and a "U" for Universal. Although some manufacturers (not Surefire) advertise their Universal interfaces as Picatinny interfaces, the Universal rail and Picatinny rail have different specifications and do require different adapters for a proper fit.

The X300 is built to Mil-Specs and is both CE and FCC rated. The X300 features a precision-machined aerospace-grade aluminum body with a Mil-Spec Type III hard-anodized black finish. The rails and rail adapter are a durable polymer, as is the back plate. The X300 is O-ring sealed. It's waterproof to a depth of 22 meters (66 ft.).

The X300 is ultra-compact and light in weight. It measures just 1.39-inches high by 1.43-inches wide by 3.53-inches long (w/standard switch) and has a 1.06-inch diameter bezel. The total weight of the X300 (w/batteries) is only 3.7 oz. For purposes of comparison, that's less weight than a loaded pistol magazine. From a practical standpoint, the differences in size and weight between the X200 and X300 are so small as to be nonexistent.

Suggested retail price for the X300 LED WeaponLight is $225. As with all Surefire lights, the X300 is covered by SureFire's lifetime "if it breaks, we fix it" warranty. l

X300 Specifications:
Manufacturer: Surefire LLC
Model: X300 LED WeaponLight
UPC Number: 08487130772
Max Output: 110 lumens
Runtime: 2.4 hours of tactical-level light (60 lumens or greater)
Length: 3.53 inches
Height: 1.43 inches
Bezel Diameter: 1.06 inch
Weight (w/batteries): 3.7 ounces
Material" Aerospace-grade aluminum, tempered Pyrex window
Finish: Mil-Spec Type III hard anodizing
Color: Black
Batteries (included): Two 123A lithium
Warranty: Lifetime
MSRP: $225.00


Contents copyright (c) 2008 Modern Survival Magazine

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