Checked todayCloud Defensive
REIN Dual Fuel REINDF
1,100 lm533 m18650IPX8
M640 U-Pro M640U
1000-lumen Scout Light Pro long-gun weapon light with TIR lens and M-LOK + Picatinny mount compatibility. The current-generation SureFire rifle light for military, law enforcement, and home defense rifles.
Amazon: 4.7/5 (964 ratings)
Verdict
Strengths
- Insufficient data for assessment
Trade-offs
- Heavier than typical pocket-carry options
- No lockout mode to prevent accidental activation
- No pocket clip included
- No built-in charging — external charger required
Score Breakdown
Our algorithm scores every flashlight across six profiles. Select a profile to see which metrics drive the result. How we score →
Overall score
Buyer trust, value, raw performance, and build quality.
Amazon Trust35%Buyer social proof from Amazon — 60% star rating + 40% review volume. High stars with few reviews score lower than solid ratings with lots of buyers.76
Star Rating60%4.7 / 580
Review Volume40%964 ratings70
Value25%How much performance you get per dollar.58
Performance Blend55%58
Max Lumens40%1,000 lm59
High Runtime30%1.5 hr56
Peak Candela30%16,000 cd60
Performance25%Blend of lumens, candela, throw distance, and high-mode runtime.59
Max Lumens35%1,000 lm59
Peak Candela25%16,000 cd60
Beam Distance20%250 m61
High Runtime20%1.5 hr56
Durability15%IP waterproof rating and impact resistance.55 / 10055
Formula v1 · select a profile above · nested rows show what feeds each composite
Performance
Max Lumens1,000
Sustained Lumens500
Candela16,000
Beam Distance250 m
Beam Patternhybrid
CRI—
Turbo Stepdown60s
Hardware
Battery18650
Rechargenone
ReplaceableYes
LED—
Weight184.0g
Length155.0mm
Head25.4mm
Features
IP RatingIPX7
Impact Resist.1.0m
MaterialAluminum
StrobeNo
LockoutNo
MemoryNo
Magnetic TailNo
Ready to buy the SureFire M640 U-Pro?
$315.00
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Common Questions
Is the SureFire M640 U-Pro waterproof?
Yes, the SureFire M640 U-Pro has a IPX7 waterproof rating, making it suitable for use in rain and wet conditions.
What battery does the SureFire M640 U-Pro use?
The SureFire M640 U-Pro uses 18650 batteries.
How far can the SureFire M640 U-Pro throw?
The SureFire M640 U-Pro has a maximum beam distance of 250 meters (820 feet) with 16,000 candela.
How bright is the SureFire M640 U-Pro?
The SureFire M640 U-Pro produces up to 1,000 lumens on its highest mode.
How much does the SureFire M640 U-Pro weigh?
The SureFire M640 U-Pro weighs 184.0g (6.5 oz). It is 155.0mm long.
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