SureFire M640U-BK-PRO Scout Light Pro 1000 Lumens Black - M640U-BK-PRO

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SureFire M640U-BK-PRO Scout Light Pro 1000 Lumens Black M640U-BK-PRO UPC 084871329286

Product Description

The SureFire M640U-BK-PRO Scout Light Pro (M640U-BK-PRO) is a flagship tactical long-gun light engineered specifically to deliver high-output illumination and unparalleled mounting flexibility for carbines, sub-carbines, and tactical rifles. Generating a powerful 1,000 lumens of smooth white light paired with 11,300 candela peak beam intensity, the Ultra-series Total Internal Reflection (TIR) lens creates a versatile beam pattern that balances a bright central reach with broad peripheral illumination for close-quarters clearing and medium-range threat identification.

The defining innovation of the Scout Light Pro series is SureFire’s Low-Profile Mount (LPM). This revolutionary mounting system allows the operator to pivot the light body relative to the mounting rail, tucking the housing tightly against top rails, lasers, or iron sights to drastically reduce overall rifle profile and snag hazards. Included with both MIL-STD-1913 Picatinny and M-LOK mounting cleats, the LPM ensures seamless attachment to virtually any modern handguard system without requiring aftermarket mounting brackets.

Constructed from lightweight, CNC-machined aerospace aluminum and finished in a Mil-Spec Type III hardcoat anodized matte black, the M640U-BK-PRO is built to withstand violent muzzle blast, severe physical drop impacts, and harsh environmental exposure. Powered by two included CR123A lithium batteries, the light features a reliable Z68 push-button tailcap switch that offers intuitive momentary-on and constant-on activation. Fully O-ring and gasket sealed for IPX7 waterproof reliability, the SureFire M640U-BK-PRO sets the industry benchmark for duty-grade weapon illumination.

Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Mounts to any M-LOK handguard slot or MIL-STD-1913 Picatinny receiver/handguard rail using the included interchangeable LPM cleat adapters. Optimized for AR-15 carbines, PCCs, and tactical shotgun handguards.

1. Perform a complete firearm safety check: drop the magazine, lock the bolt or charging handle rearward, and visually inspect the chamber to ensure zero live rounds are present.
2. Select either the M-LOK or Picatinny mounting cleat and attach it to the Low-Profile Mount pivot arm on the light body.
3. Position the light onto your handguard at the desired rail location.
4. Loosen the LPM pivot screw slightly, swivel the light body inward toward the handguard to achieve the tightest possible profile against your top rail accessories, and tighten the pivot screw securely.
5. Torque the rail mounting hardware to 25–30 in-lbs for Picatinny or M-LOK specs using the appropriate driver.
6. Unscrew the rear Z68 tailcap, insert two fresh CR123A batteries (positive terminals facing forward toward the bezel), thread the tailcap on tightly, and perform a function test of both momentary and constant-on switch modes.

Key Features

• 1,000 Lumens High Output: Recoil-proof LED and TIR optic produce a brilliant white beam with ideal central intensity and wide surround light.
• Revolutionary Low-Profile Mount (LPM): Articulating mount allows custom angle adjustment to tuck the light tightly against the handguard and minimize weapon footprint.
• M-LOK & Picatinny Cleats Included: Ships with interchangeable mounting brackets for direct attachment to M-LOK slots or 1913 Picatinny rails.
• Z68 Momentary/Constant-On Tailcap: Protective shroud prevents accidental activation while offering tactile switch control under stress.
• Aerospace Billet Aluminum Construction: Mil-Spec Type III hardcoat anodized matte black finish resists chemicals, scratching, and severe abrasion.
• O-Ring & Gasket Sealed IPX7 Waterproofing: Built to endure rain, mud, and water immersion down to 1 meter for 30 minutes.

Product Specifications

• Brand: SureFire
• Model/Series: M640U-BK-PRO Scout Light Pro Ultra
• MPN / SKU: M640U-BK-PRO
• UPC: 084871329286
• Peak Output: 1,000 Lumens
• Peak Intensity: 11,300 Candela
• Power Source: 2x CR123A 3V Lithium Batteries (Included)
• Runtime: 1.25 Hours
• Mount Interface: Low-Profile Mount (Includes M-LOK & Picatinny Cleats)
• Switching: Z68 Click-Type Tailcap Switch
• Material: Aerospace Aluminum
• Finish / Color: Type III Hardcoat Anodized Matte Black
• Waterproof Rating: IPX7 Submersible
• Length: 5.5 Inches
• Bezel Diameter: 1.125 Inches
• Weight (with Batteries): 4.8 oz
• Country of Origin: USA