Surefire X300V-B Weaponlight - Arkayne

Surefire X300V-B Weaponlight


Lead Time on this product: 1 - 10 Business Days

The X300V-B weapon light is a perfect fit for any sidearm that is used as a daily carry or night shooting pistol.

What makes the X300V such a versatile weapon light?

At first glance people might be turned off to the X300V as a primary white light due to the lumen output being low compared to other mainstream products. We would suggest checking out the candela. This little light really throws a great beam pattern FAR downrange. Performance is great considering the tradeoffs normally seen with white/IR light combinations. We have no issues running this light as a primary white light. Under night vision the IR setting punches light where you need it. No shadow is safe from this light in IR mode. It is potent enough that we have even used these on carbines for close to medium distance hunting and shooting.

A quick rundown of some of the specs of the X300V-B:
  • CR123A battery compatibility.
  • Advertised 350 Lumens in white light mode.
  • Advertised 12750 Candela in white light mode. Great “reach” of this white light.
  • The ability to quickly switch between white light and IR is extremely versatile
  • Low Profile mount keeps the light close to your rail
  • Lightweight yet rugged construction
  • Screw attachment fits most picatinny rail sections on rifles and handguns.
  • Versatile holster compatibility means this can be a primary EDC pistol light

Our team has had great experiences with this light. For anyone running night vision, this light would be a great option as a primary or secondary illumination device for passive aiming.

*Note: IR lights and lasers are subject to ITAR regulation and CANNOT be exported outside of the US. ITAR form will be required to be filled out at time of checkout. 

4 in stock


Designed for hard use on sidearms, the X300V-B couples white light with potent IR output.

Built for those who need great white AND IR performance, the X300V-B has become our favorite pistol light for night shooting. Typically sacrifices are made when coupling infrared and white light into one package. This is not the case with the X300V-B. Great white light output, and potent IR output are packed into this light.

Designed for pistols, destined for any platform needing white and IR lighting.

While the primary design of this light is for sidearm use, it can be used on many carbines. We say this confidently simply due to the output of this lighting system. The throw and output is VERY similar to the SureFire M640V. Users familiar with the output of this light will feel right at home with the X300V.

The “B” model is our preferred mounting method as it utilizes a standard screw for tightening to picatinny rail sections.

The importance of a well rounded lighting solution:

Even under nightvision, there are often situations that require more illumination in the IR spectrum. This light will provide that and much more.



Spectrum of Light

Visible White Light & Infrared


Black Anodized

Lumen Output

350 Lumens (Visible Light)

Candela Output

12,750 Candela

IR Output 120 Milliwatts / 860nm
IR Runtime 16.75 Hours Advertised


Approximately 4.oz

Bezel Diameter


Activation Ambi Momentary and constant switches
Mount Picatinny
Battery Type 2X CR123A Batteries

1.) How does the Surefire X300V stack up against other light brands and models. 

One thing to keep in mind: This white/IR light is a COMPROMISE of function. The luxury of having white AND IR usually comes at a cost of performance in one or both of those categories. We are happy to report back that, although it might not be the brightest or most potent white light, it still features amazing throw and a great beam pattern. This white light will surprise you in terms of throw and brightness. It holds its own against other white lights on the market, but others WILL outperform it in terms of lumens and candela. If you are searching for a dedicated high output white light, this won’t necessarily be it. If you desire IR and white light function, and want an IR illuminator that is even worth a darn, this light will check your boxes.

2.) Who should consider the X300V weapon light? 

This light really shines for folks who are just getting into night vision and need an illumination source for running at night under nods. If having a laser/illuminator is out of the question, the X300V will get you shooting passively for a relatively low price, especially compared to dedicated laser aiming devices. In some states it is also illegal to hunt predators with “lasers”. Having a dedicated IR illuminator eliminates the laser from the question and keeps you on the right side of the law. Passive aiming is also very effective. This IR light is also potent enough for clip on units like the PVS30 or UNS SR.

3.) What is the battery life like on the 640V? 

The X300V has an advertised 2.5 hour run time in white light and 16.75 hours in IR. We can attest: expect a full night of run time under nods. This is a great run time, especially considering the output in IR mode.

4.) What about a warranty?

Contact Surefire if any problems exist with your light.

5.) Are these stocked or drop shipped? 

We stock what is shown on our site here in our warehouse. These are NOT drop shipped. We hold the inventory, we ship at time of order.

6.) Are Surefire lights still worth it in the world of other great companies? 

We think so. Are they for everyone? Probably not. The surefire reputation of quality and performance should be noted. For many people, they buy a surefire for the durability and reliability. For others, it’s in the name. We run many different lighting solutions on our rifles. We are very happy with the X300V and its performance especially in IR mode. No sacrifices are made and this is a very well rounded light in all modes.

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A note about our current lead times:

Arkayne is a RAPIDLY growing brand. Because of that, some of our suppliers have a hard time keeping up. There are occasions where WE experience lead times from our partners, and we do our absolute best to post the lead times at the top of our product pages. BEFORE PURCHASING: look at the lead time on the product pages. If you have ANY questions regarding lead times,  Email: and we will send you our closest ETA. We know you are pumped to get your gear, and we will process your order as fast as possible. We aren’t Amazon, we are a small US owned business that gives a rip about getting you equipped. We will get you your gear ASAP. See you in the darkness.