The SureFire X300U-A tactical weapon light is a 1000-lumen mounted light built for shooters who need fast, reliable illumination on a handgun or rifle. It's the go-to choice for defensive and duty carry—trusted by law enforcement and military units worldwide—and it earned that reputation through straightforward performance: a bright, focused beam that cuts through darkness and helps you identify threats at distance while flooding the surrounding area with usable light. The X300U-A mounts securely to both Universal and Picatinny rails, staying locked in place under recoil and quick-detach drills.

Durability is built in. The body is aerospace-grade aluminum, hard anodized to military spec for corrosion and scratch resistance. It's sealed and rated IPX7 waterproof to 1 meter for 30 minutes, so weather and submersion won't kill it. The white LED is recoil-proofed and focused by a precision TIR (total internal reflection) lens that creates a smooth, long-reaching beam with a pronounced hot center spot—ideal for the close- to medium-range distances where most defensive situations happen—plus enough surround light to maintain situational awareness and keep your night vision from totally collapsing.

Controls are intuitive: ambidextrous momentary-on and constant-on switching lets you activate the light with one finger without breaking your grip or changing your hand position. That simplicity matters when seconds count. If you need hands-free operation or more refined control, SureFire makes optional pressure-activated remote switches (DG and XT versions) that pair with the X300U-A for precision activation without altering your hold on the gun.

Key Features

• 1000 lumens of white LED output with 213-meter beam distance
• Precision TIR lens delivers a focused hot spot with useful surround illumination
• Rail-Lock system for rapid, secure attachment and removal on Picatinny and Universal rails
• Mil-Spec hard anodized aluminum body resists corrosion and impact damage
• IPX7 waterproof rating: sealed to 1 meter for 30 minutes
• Ambidextrous momentary and constant-on switching for one-finger activation
• Compatible with optional remote pressure switches (DG and XT models)
• Recoil-proven LED and housing for handgun and rifle use

Specifications

Brand	SureFire
Model	X300U-A
Output	1000 lumens
LED Type	White LED
Beam Distance	213 meters
Rail Compatibility	Universal and Picatinny
Mounting System	Rail-Lock
Body Material	Aerospace aluminum
Finish	Mil-Spec hard anodized (tan)
Waterproof Rating	IPX7 (1 meter, 30 minutes)
Switching	Ambidextrous momentary and constant-on

Frequently Asked Questions

Will the X300U-A fit my pistol or rifle rail?

Yes. The X300U-A is designed to attach securely to both Universal and Picatinny accessory rails found on most modern handguns and long guns. The Rail-Lock system allows quick attachment and removal without tools.

Can I use the X300U-A in wet conditions or submerged environments?

The X300U-A is rated IPX7 waterproof, meaning it's sealed and rated to function at depths of 1 meter for up to 30 minutes. It's suitable for rain, splashing, and brief water immersion, but is not rated for extended submersion or saltwater use.

What kind of beam does the X300U-A produce?

The light uses a precision TIR lens to produce a smooth, far-reaching beam with a larger central hot spot and surround light. This combination is designed for close- to medium-range identification and threat assessment while maintaining peripheral awareness.

Can I use remote switches with the X300U-A?

Yes. The X300U-A is compatible with optional SureFire pressure-activated remote switches, including the DG and XT models, which allow hands-free or refined control without altering your grip on the weapon.