The SureFire X400U-A Ultra Weapon Light, Red Laser, Black is a SureFire weapon light with 11,300 candela output and Rail-Lock quick-attach mount.
The SureFire X400U-A Ultra Weapon Light pairs a high-output white beam with an integrated red aiming laser on a quick-detach rail mount. Aerospace-aluminum body, Mil-Spec black finish, SureFire lifetime warranty.
How It Compares
Compare with the SureFire X400U-A Ultra (Green Laser), SureFire X400T-A Turbo (Red Laser) and SureFire X400T-A Turbo (Green Laser). Browse all weapon laser sights or the full SureFire range.
Ideal For
- Identifying a target before you decide — 11,300 candela
- Rifles and handguns with a Rail-Lock quick-attach rail
- Home defense and duty use where hesitation costs time
- Keeping weight down on a light build at 5.0 oz
Key Features
- Peak Beam Intensity: 11,300 candela
- Mount: Rail-Lock quick-attach (the 'A' suffix); Universal + Picatinny rails
- Battery: Two 123A lithium (included)
- Runtime: 1.25 hours (high, white light); laser 24 hours
- Water Resistance: IPX4
- Body & Finish: Aerospace aluminum, Mil-Spec hard-anodized, black
- Switch: Ambidextrous momentary- and constant-on (push/toggle)
- Length: 3.7 in (9.4 cm)
About This Model
- White light: 1,000 lumens
- Aiming laser: Red
- Mount: Rail-Lock quick-attach (the 'A' suffix); Universal + Picatinny rails
- Warranty: SureFire No-Hassle Lifetime Warranty
Technical Specifications
White Output | 1,000 lumens |
Peak Beam Intensity | 11,300 candela |
Beam Distance | 213 meters |
Laser Color | Red |
Laser Wavelength | 635 nm |
Laser Output | <5 mW. |
Laser Class | IIIa |
Runtime | 1.25 hours (high, white light); laser 24 hours |
Battery | Two 123A lithium (included) |
Switch | Ambidextrous momentary- and constant-on (push/toggle) |
Mount | Rail-Lock quick-attach (the 'A' suffix); Universal + Picatinny rails |
Body & Finish | Aerospace aluminum, Mil-Spec hard-anodized, black |
Length | 3.7 in (9.4 cm) |
Weight | 5.0 oz (141.7 g) with batteries |
Water Resistance | IPX4 |
SKU / MPN / UPC | X400U-A-RD / X400U-A-RD / 084871321211 |
Warranty
SureFire back this with their No-Hassle Lifetime Warranty: if a product is found defective in materials or workmanship during your lifetime they repair or replace it. Rechargeable batteries and chargers are covered for two years, and normal wear, consumables and abuse are excluded.
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
What does it mount to?
Rail-Lock quick-attach (the 'A' suffix); Universal + Picatinny rails.
How bright is it?
11,300 candela.
What battery does it take?
Two 123A lithium (included).
Is it waterproof?
IPX4.
Is this a genuine SureFire product?
Yes — factory-new SureFire, supplied through US distribution. The part number is X400U-A-RD and the barcode is 084871321211.
What warranty does it carry?
SureFire back this with their No-Hassle Lifetime Warranty: if a product is found defective in materials or workmanship during your lifetime they repair or replace it. Rechargeable batteries and chargers are covered for two years, and normal wear, consumables and abuse are excluded.
