Description
SureFire M640 Scout Light offers a powerful 1000 lumens of illumination, designed for tactical applications with a focus on versatility and reliability. Featuring a lightweight and compact design, this light integrates seamlessly with various weapon platforms using the included M-LOK mount. Its high-output LED provides a broad, intense beam that effectively illuminates targets in low-light conditions, ensuring enhanced situational awareness. The rugged construction and weather-resistant finish ensure durability, making it suitable for demanding environments.
This Scout Light is equipped with an ergonomic tail cap switch for easy activation, allowing for quick adjustments in both momentary and constant-on modes. The streamlined design reduces the overall profile of your setup, minimizing snagging during movement. It also features a black finish that provides discreet operation while maintaining tactical integrity.
Features – Key Benefits Bullets
- POWERFUL 1000 LUMENS for maximum visibility in low-light conditions.
- LIGHTWEIGHT DESIGN ensures easy handling and reduces weapon weight.
- SEAMLESS M-LOK MOUNTING integrates quickly with compatible systems.
- ERGONOMIC TAIL CAP SWITCH allows for intuitive operation in various scenarios.
- WEATHER-RESISTANT FINISH protects against moisture and corrosion.
- RUGGED CONSTRUCTION withstands harsh environments and heavy use.
- COMPACT SIZE minimizes bulk and enhances overall maneuverability.
- DISCREET BLACK FINISH blends into tactical setups without drawing attention.
Technical Specifications Table
| Feature | Detail |
|---|---|
| Output | 1000 lumens |
| Mount Type | M-LOK |
| Weight | 6.0 oz (170 g) |
| Dimensions | 5.1 x 1.5 inches |
| Finish | Black |
| Material | Aluminum |
| Battery Life | 60 minutes (high mode) |
| Switch Type | Tail cap switch |
What's in the Box?
- M640 Scout Light
- M-LOK mount
- User manual
Customer Reviews
"This light is incredibly bright and easy to mount. A must-have for nighttime operations!"
"Lightweight and durable—perfect for my tactical setup. Highly recommend!"
FAQ
How does the M640 Scout Light compare to other tactical lights? The M640 Scout Light stands out due to its 1000 lumens output, providing superior brightness compared to many other tactical lights in its class. Its compact design and M-LOK compatibility also enhance its versatility for different weapon setups.
What type of battery does the M640 use, and how long does it last? The M640 Scout Light uses a rechargeable lithium battery, offering approximately 60 minutes of runtime on high mode. This ensures you have ample illumination during critical moments.
Is the M640 Scout Light waterproof? Yes, the M640 features a weather-resistant design, protecting it from light rain and moisture. However, it is not fully submersible, so care should be taken in extreme conditions.
Can the M640 be used on non-M-LOK platforms? While the included M-LOK mount is specifically designed for M-LOK systems, adapters are available for mounting on other platforms, making the Scout Light quite versatile.
What maintenance is required for the M640 Scout Light? Regularly inspect the light for any signs of damage and keep the lens clean for optimal performance. The battery should be charged regularly to ensure readiness for use.
Similar Models
Looking for other reliable tactical lighting options? Explore the SureFire lineup, including the SureFire M600 Ultra Scout Light for an extended runtime and the SureFire X300 Ultra for versatile mounting options. Discover our full collection to find the lighting solutions tailored to your needs.
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Optics Knowledge Center
Understanding Rifle Scope Basics
Magnification
Magnification refers to how much larger an object appears through the scope compared to the naked eye. Fixed power scopes have one magnification setting, while variable power scopes offer a range (e.g., 3-9x).
Objective Lens
The objective lens is the front lens that gathers light. Larger objective lenses (measured in mm) gather more light, providing brighter images in low-light conditions but add weight and require higher mounting.
Reticle
The reticle (crosshair) is the aiming point inside the scope. Modern scopes offer various reticle designs, from simple duplex crosshairs to complex ballistic reticles with holdover points for different distances.
Adjustments
Rifle scopes have turrets for windage (horizontal) and elevation (vertical) adjustments. These are measured in MOA (minutes of angle) or MRAD (milliradians) and allow precise aiming adjustments.
Proper Scope Mounting Guide
Select the Right Rings & Base
Choose rings that match your scope's tube diameter (typically 1", 30mm, or 34mm). Select a base compatible with your rifle's receiver. For heavy-recoiling rifles, opt for stronger mounts.
Install the Base
Clean the receiver and base thoroughly. Apply a small amount of blue Loctite to the screws. Attach the base to the receiver and torque the screws to manufacturer specifications.
Attach the Rings
Attach the bottom halves of the rings to the base. Place the scope in the rings and loosely attach the top halves. Don't fully tighten yet.
Set Eye Relief & Level
Position the scope for proper eye relief (3-4 inches) in your normal shooting position. Ensure the reticle is level using a scope leveling tool. Once positioned correctly, tighten the rings evenly in a cross-pattern.
Scope Zeroing Tips
Start Close
Begin zeroing at a shorter distance (25-50 yards) to ensure you're on paper before moving to your desired zero distance (typically 100 yards).
Use a Stable Rest
Always zero your rifle from a stable shooting position using a bench rest, sandbags, or a shooting rest to eliminate as much human error as possible.
Fire Groups
Fire 3-shot groups before making adjustments. This provides a more accurate representation of where your rifle is shooting than single shots.
Make Deliberate Adjustments
Know your scope's adjustment values (typically 1/4 MOA per click). If your group is 2 inches low at 100 yards, you'll need to adjust up 8 clicks (for a 1/4 MOA scope).
Confirm Your Zero
After making adjustments, fire another group to confirm your zero. Repeat the process until your point of impact matches your point of aim.
Document Your Settings
Once zeroed, record your settings including distance, ammunition used, and environmental conditions for future reference.
Optics Maintenance & Care
Cleaning Lenses
- Start by blowing or brushing away loose particles
- Use a lens pen or microfiber cloth for fingerprints
- For stubborn dirt, use lens cleaning solution (never household cleaners)
- Clean with gentle circular motions from center outward
Protecting Your Optics
- Always use lens caps when not in use
- Store in a dry place with silica gel packets
- Avoid extreme temperature changes
- Use a quality scope cover in harsh conditions
Regular Maintenance
- Check and tighten mount screws periodically
- Inspect O-rings and seals for damage
- Verify zero after rough handling
- Clean the exterior with a damp cloth
What to Avoid
- Never use fingers to touch lenses
- Avoid paper products (tissues, paper towels) on lenses
- Don't use acetone, alcohol, or household cleaners
- Never disassemble your scope (voids warranty)