So you’re looking to get the Surefire X300 Ultra A vs Surefire X300 Ultra B weapon light but need to know whether to get the A or B model. We will walk you through the key differences to help you decide which is best for your needs. But before that, let’s briefly overview the two products.
About SureFire X300 Ultra A
Illuminate your path with the SureFire X300U-A Ultra and a 1000-lumen LED weapon light built for durability and versatility. The Mil-Spec Hard Anodized aluminium body ensures reliability in the most challenging operations. Its Rail-Lock system allows quick attachment to Universal and Picatinny accessory rails.
Pros:
- Virtually Indestructible: Mil-Spec Hard Anodized aluminium body for ruggedness.
- Versatile Mounting: Rail-Lock system for secure attachment to various accessory rails.
- Intuitive Operation: Ambidextrous momentary- and constant-on switch for convenience.
- High Power Output: Custom TIR lens and high-performance LED deliver an impressive 1000 Lumens.
- Extended Runtime: Bundle includes 12 extra CR123A batteries and three battery cases for a total runtime of 7.5 hours.
Cons:
- Handgun Use Only: Optimized for handguns; unsuitable for rifle mounting without additional adapters.
About Surefire X300 Ultra B
Illuminate your path with the SureFire X300U-B, delivering 1000 lumens of virtually indestructible LED light. The custom TIR lens ensures a smooth, far-reaching beam with a prominent centre spot. This light attaches securely to Universal and Picatinny accessory rails with integral ambidextrous switching for momentary or constant activation. The bundle includes 12 extra SureFire CR123A batteries and 3 Lightjunction battery cases for extended use. Please note it is not compatible with FN 509 (M/C/T). Illuminate confidently and stay powered with this comprehensive SureFire package.
Pros:
- Powerful 1000 lumens output.
- Ambidextrous momentary and constant-on switching.
- Secure attachment to Universal and Picatinny rails.
- The bundle includes 12 extra batteries and three battery cases.
Cons:
- Not compatible with FN 509 (M/C/T).
Choosing Between the Surefire X300 Ultra A vs Surefire X300 Ultra B Weapon Lights
At first glance, the Surefire X300 Ultra A vs Surefire X300 Ultra B lights look almost identical. They put out the same 1,000 lumens of bright white light. The dimensions and weights are precisely the same. Both versions are available with black or FDE-coloured bodies.
Lumens & Runtime
First, let’s cover the similarities. The Surefire X300 Ultra A vs Surefire X300 Ultra B have the same 1,000-lumen maximum output and 1.5-hour runtime. They also have identical construction, waterproof ratings, and other core specs.
There are some factors which differentiate Surefire X300 Ultra A vs Surefire X300 Ultra B. That is the mounting system and switches.
Factors:
Mounting System
SureFire X300 Ultra A:
- Lever lock mounting system
- It comes with multiple mounting accessories for rifles/shotguns
- It can be removed quickly by just flipping a lever
SureFireX300 Ultra B:
- Thumbscrew mounting
- Only includes keys for handguns
- It would help if you had a screwdriver to remove
So the A gives you more flexibility to mount on different weapons if needed, while the locks things down more securely on a handgun.
Switch modes
SureFire X300 Ultra A:
- Ambidextrous toggle switch
- No momentary-on function
SureFireX300 Ultra B:
- Ambidextrous push button
- Gives momentary-on activation by pushing the switch
The B, again, is explicitly made for handguns, with the ability to temporarily activate the light without locking it on, which is suitable for quick target identification.
Surefire X300 Ultra A vs Surefire X300 Ultra B:Which one should you choose?
SureFire X300 Ultra A:
- It is ideal for users seeking flexibility in mounting across various weapons.
- Does not feature momentary activation.
- The quick-release system, though less secure on handguns, ensures rapid swapping for those prioritizing versatility.
SureFire X300 Ultra B:
- Explicitly designed for handguns.
- Thumb screw lock and momentary button optimized for defensive pistol use.
- It is not only suitable for rifle mounting with additional rail adapters.
Now you know the difference between Surefire X300 Ultra A vs Surefire X300 Ultra B. You may also like to read our comprehensive buyer’s guide for Glock laser light.
You may also like to read our comprehensive buyer’s guide on Surefire laser light.
End Thought:
The SureFire X300 Ultra B is likely the best choice if you only intend to use this weapon light on a handgun. The secure thumb screw mounting and push button switch cater specifically to pistol shooting applications. On the other hand, if you want the versatility to mount the light on multiple weapons easily, the X300 Ultra A is likely the better option with its reversible lever lock and toggle switch.