The Surefire X300U is a popular weapon light for handguns and rifles. It comes in two versions: the X300U-A and X300U-B. Gun owners often wonder which model is best for their needs.
The main difference between the X300U-A and X300U-B is their mounting system. The A model uses a rail-grabber system, while the B model has a T-slot mounting system. This affects how the light attaches to different firearms and can impact its fit and stability.
Both versions offer the same 600 lumen output, but they may perform differently on various gun types. The choice between A and B often comes down to personal preference and the specific firearm it will be used with.
Key Takeaways
- The X300U-A and X300U-B differ mainly in their mounting systems
- Both models provide 600 lumens of bright white light
- Choosing between A and B depends on the user’s firearm and preferences
Overview of Surefire X300U
The Surefire X300U is a powerful weapon-mounted light known for its durability and performance. It comes in two main versions: the X300U-A and X300U-B, each with unique mounting systems.
Design & Build Quality
The Surefire X300U features a rugged aluminum body built to withstand harsh conditions. It has a sleek, compact design that fits well on most handguns and long guns. The light uses a quick-detach rail-lock system for easy attachment and removal.
The X300U-A model uses a rail-grabber attachment with lever latches. This allows for quick installation and removal.
The X300U-B version has a T-slot mounting system with a tightening screw. This provides a more secure fit but takes longer to attach or detach.
Both models are waterproof and can handle recoil from powerful firearms.
Light Output & Performance
The Surefire X300U produces an impressive 1,000 lumens of white light. This bright output helps identify targets and potential threats in low-light conditions.
The light has a focused beam for long-range visibility. It also creates a wide spill of light for peripheral awareness.
A ambidextrous switching system allows for easy operation. Users can choose between momentary-on and constant-on modes.
The X300U includes a special TIR lens. This lens shapes the light beam for optimal performance at various distances.
Battery Life & Power Source
The Surefire X300U runs on two CR123A lithium batteries. These batteries are widely available and provide consistent power output.
Battery life varies depending on usage. At full power, the light can run for about 1.25 hours continuously.
The X300U has a fuel gauge feature. This lets users know when battery power is getting low.
Changing batteries is simple and can be done without removing the light from the weapon.
Some users prefer rechargeable batteries for cost savings. However, disposable CR123As offer reliable performance in extreme temperatures.
Differences Between X300U-A and X300U-B
The SureFire X300U-A and X300U-B models have key differences in their mounting systems, firearm compatibility, and control interfaces. These variations affect how the lights attach to weapons and how users operate them.
Mounting Interface
The X300U-A uses a universal rail-lock mounting system. This system works with both Picatinny and universal rails. It has a quick-detach lever for easy attachment and removal.
The X300U-B features a T-slot mounting system. It uses a tensioning screw to secure the light to the firearm. This design offers a tighter, more secure fit on some gun models.
The B model may require different mounting plates for different firearms. Users need to select the right plate for their specific gun.
Compatibility with Firearms
The X300U-A fits a wide range of firearms due to its universal mounting system. It works well with most pistols, rifles, and shotguns that have accessory rails.
The X300U-B may offer a better fit on some pistols, especially those with polymer frames. Its mounting system can provide a more stable connection on these guns.
Some users prefer the B model for duty use. Its tighter fit reduces the chance of the light shifting during recoil.
Control Interface
Both models have ambidextrous toggle switches for on/off control. These switches allow for momentary or constant-on activation.
The X300U-A’s switches may feel slightly different from the B model. Some users report that the A model’s switches have a softer, more tactile feel.
The X300U-B’s switches might feel more firm. This can help prevent accidental activation, but may require more deliberate pressure to operate.
Both lights offer the same 1,000-lumen output and beam pattern. The control differences are mostly about user preference and handling characteristics.
Advantages of X300U-A
The Surefire X300U-A offers several key benefits for weapon light users. Its quick-attach mounting system allows for fast and easy installation on firearms.
This model uses a rail-lock mounting system that secures the light firmly to most handguns and long guns with Picatinny or Universal rails. The spring-loaded mechanism snaps into place without tools.
Many shooters prefer the X300U-A for its versatility. It can be quickly moved between different firearms without needing adjustments.
The A model weighs slightly less than the B version. This makes it a good choice for those wanting to minimize added weight to their firearm.
Its ambidextrous switching allows for easy activation with either hand. The toggles are large enough to use with gloves on.
The X300U-A provides 1,000 lumens of bright white light. This illuminates targets clearly at close to medium ranges.
Its precision TIR lens creates a focused beam with sufficient peripheral illumination. This allows for both target identification and situational awareness.
Advantages of X300U-B
The X300U-B model offers several key benefits over its predecessor. Its mounting system is a standout feature, using a T-slot design that provides a more secure attachment to firearms.
This improved mounting mechanism allows for quick and easy installation on various weapon platforms. Users can simply tighten the light onto their firearm without needing to swap out mounting plates.
The X300U-B is known for its versatility. It can be easily moved between different guns without requiring adjustments or part changes. This makes it ideal for those who own multiple firearms.
Another advantage is its compatibility with newer firearm models. The B version works well with both older and newer gun designs, ensuring a proper fit across a wide range of weapons.
The X300U-B also features improved ergonomics. Its switch design allows for easier activation, enhancing user experience during high-stress situations.
Durability is a key strength of the X300U-B. It’s built to withstand harsh conditions and repeated use, making it a reliable choice for law enforcement and military personnel.
Considerations Before Purchase
Choosing between the SureFire X300U-A and X300U-B models requires careful thought. Buyers should weigh factors like price, intended use, and warranty coverage before making a decision.
Price Comparison
The SureFire X300U-A and X300U-B are priced similarly, with only a small difference between them. The A model is often slightly cheaper than the B model.
The exact prices can vary depending on the retailer and any current promotions. It’s worth checking multiple stores to find the best deal.
Some gun shops may offer package deals that include extra batteries or accessories, which can add value to the purchase.
Intended Use & Requirements
The main difference between the X300U-A and X300U-B lies in their mounting systems. This affects how they fit on different firearms.
The X300U-A uses a quick-detach lever system. It’s faster to attach and remove, making it ideal for users who frequently switch the light between guns.
The X300U-B has a screw-mount system. It provides a more secure fit with less wobble, which is better for duty use or high-recoil firearms.
Consider the types of guns you’ll use the light on. The A model works well with polymer-framed pistols, while the B model is often preferred for metal-framed guns and rifles.
Manufacturer Support & Warranty
SureFire offers strong customer support and warranty coverage for both X300U models. Their lights come with a limited lifetime warranty against defects in materials and workmanship.
This warranty covers repairs or replacement if the light fails during normal use. It doesn’t cover batteries, abuse, or modifications.
SureFire’s customer service is known for being responsive. They can help with troubleshooting issues or arranging repairs if needed.
Keep in mind that proper care and maintenance can extend the life of your light. Follow the manufacturer’s instructions for cleaning and battery replacement.
Frequently Asked Questions
The Surefire X300U-A and X300U-B tactical lights have key differences in mounting, compatibility, and performance. These factors affect their use on various handguns and in different holsters.
What are the compatibility differences between Surefire X300U-A and X300U-B on various handguns?
The X300U-A uses a universal mounting system that fits most handguns. It attaches quickly but may have some play on certain models.
The X300U-B has a tighter fit on many guns. It uses a thumbscrew mount that eliminates wobble but takes longer to attach and remove.
Can the Surefire X300U-A model be converted to the X300U-B model?
The X300U-A cannot be converted to the X300U-B model. They have different mounting systems built into their bodies.
Users must choose the model that best fits their needs when purchasing. Switching between models requires buying a new light.
What are the mounting system differences between the X300U-A and the X300U-B?
The X300U-A uses a quick-attach lever system. It snaps onto rails quickly but may have some movement on certain guns.
The X300U-B has a thumbscrew mount. It provides a tighter, more secure fit but takes longer to install and remove.
How do holster options vary for the Surefire X300U-A versus the X300U-B?
Many holsters work with both the X300U-A and X300U-B. Some holsters are designed specifically for one model or the other.
Users should check holster compatibility before purchasing. The slight differences in light shape can affect fit in some tight-fitting holsters.
What is the beam intensity and range comparison between the Surefire X300 Ultra and the X300 Turbo models?
The X300 Ultra produces 1,000 lumens with a balanced beam for close to mid-range use. It’s effective for most tactical situations.
The X300 Turbo offers 66,000 candela for longer-range illumination. It has a more focused beam for identifying targets at greater distances.
What is the battery life expectancy of the Surefire X300U tactical flashlight?
The X300U runs on two CR123A batteries. It provides about 1.25 hours of runtime at full output.
Battery life varies based on usage patterns. Intermittent use extends overall battery life compared to continuous operation.