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Questions & Answers
Does this come with Picatinny mounting options ? Expert Answer

The Cloud Defensive REIN 3.0 Full Size Weapon Light includes an inline M-LOK mount but do not have an option that includes a picatinny mount. You can, however, purchase a Arisaka picatinny mount that is compatible with the Rein and can be found by using the links below:
https://www.opticsplanet.com/arisaka-defense-picatinny-side-scout-mount.html
https://www.opticsplanet.com/arisaka-defense-picatinny-offset-scout-mount.html

by Ethan, Gear Expert, May 6, 2024
Customer Reviews
Helpful Positive Review recommend for high end wml by Shawn Pruitt, January 16, 2025
Read the installation guide provided by scan/card and also you tube. There are differences from this light and others. I have owned stream light, mod lite, cloud defensive and sure fire. Cloud is the leader for the beam. It is versatile and support ...
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2/2 found this helpful
Helpful Positive Review A Light to Love, a Cable-Management System to Loathe by Doc Solammen, Verified Owner, December 21, 2023
Cloud Defensive's are the only weapon-lights I put on my long-guns. I own numerous OWLs and a single REIN Micro, the latter of which I operate via a tail-cap switch. In early December 2023, I purchased a REIN 3.0 for my LMT MARS piston rifle. It was ...
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15/18 found this helpful
Helpful Positive Review A Light to Love, a Cable-Management System to Loathe by Doc Solammen, Verified Owner, December 20, 2023
Cloud Defensive's are the only weapon-lights I put on my long-guns. They're phenomenally tough and throw superb light characterized by bright-but-not-blinding hot-spots, generous spill-over (flood), and superior color-fidelity under illumination. To ...
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2/5 found this helpful
Helpful Positive Review Best light, wire & switch could be upgraded by Jake, Verified Owner, September 7, 2024
Love the rein 3.0, beats out the surefire and streamlight without a question. Only downside is the wire and switch definitely have room for improvement. Wire out of tail cap can only be adjusted in 90 degree moves.
1/1 found this helpful
Helpful Positive Review Flashlight by Das, Verified Owner, June 5, 2024
This flashlight is made of great quality and is unbelievably bright. It came with everything you need to mount it to your weapon. Only thing to know is the lights pressure pad that the flashlight comes with only turns the flashlight on and off. Their...
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3/3 found this helpful
Helpful Positive Review Best overall weapon light by Ben 845, Verified Owner, April 14, 2024
Between the pressure switch with cable management canals and the Nitecore battery charger it comes with not to mention the overall design and build quality of the light. The durability and specs are incredible. You won't find a better option
2/2 found this helpful
Read All 57 Reviews

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Product Info for Cloud Defensive REIN 3.0 Full Size Weapon Light

An average of 100,000 Candela in the full-size configuration represents a seismic leap in capability for the user. Over 44% more than the closest competitor. Nobody else is even close. It means more light on-target than ever before. It means better situational awareness. It means improved survivability. And run-time standards per ANSI/PLATO-FL1 ensure your light performs as long as you need it.Due to enhanced thermal upgrades, the REIN 3.0 light head CANNOT be used on any MCH lights. Simply, the light head gets too hot which can cause damage to the electrical components.image

The REIN 3.0 is now DUAL FUEL. CR123 batteries are now allowed. However, if you use CR123, expect performance degradation. We supply a branded Samsung 18650 30Q with the REIN 3.0. Please note that unlike its peers, REIN 3.0 will produce usable light for multiple hours.

Accepts ALL protected and unprotected 18650 batteries. Accepts both button-top and flat-top batteries.

Run-time standard per ANSI/PLATO-FL1 = 95 minutes for the full-size REIN 3.0. The ANSI/PLATO-FL1 standard for runtime is: The amount of time until the light reaches 10% of its original output.

As shooters ourselves, we know size matters. Particularly when you start working your lights around other systems on the gun, such as laser systems and back up sights. With a small 1.3 bezel diameter and lower mounting lug height profile, it sits tighter to your gun than ever before. The full-size REIN is now right at home on even the shortest host platforms.

Ounces do matter. The Next-Generation REIN numbers speak for themselves. And the new 3.0 generations weight is indistinguishable on the gun from the previous version.

REIN 3.0 still ships standard with a M-Lok mount. Cloud Defensive offers a full line-up of Torrent mounts for different mounting needs. REIN 3.0 is fully compatible with existing Scout Light mounts on the market.

Specifications for Cloud Defensive REIN 3.0 Full Size Weapon Light:

Manufacturer: Cloud Defensive
Light Output: 1250 lumens
Bulb Type: LED
Battery Type: 18650, CR123
Beam Color: White
Gun Model: Universal
Diameter: 1.3 in
Length: 6.17 in
Weight: 6.91 oz
Bezel Diameter: 1.3 in
Battery Life: 95 Minutes
Weather Resistance: Dustproof
Condition: New
Gun Type: Rifle

Features of Cloud Defensive REIN 3.0 Full Size Weapon Lights

  • Modular 3-piece design. With a superior electrical system and remote switch, REIN has always been upgradeable as subsequent generations are released. As such, all parts of the 1st generation REIN are fully compatible with the 2nd and now 3rd generation REIN
  • IPX-8 waterproof rating. Fully submersible to 100 feet for 24 hours
  • Fully-potted remote switch included
  • Strongest-in-class lens. The glass on the REIN is 3mm thick. It can take multiple hits from 5.56mm Simunition rounds, at contact-distance
  • Patented Battery Jack feature. This allows you to properly tension the battery inside the system to avoid battery bounce
  • Patented tail-cap cartridge is easily replaceable and allows for clocking so you can minimize cable exposure, without removing the tail of the light
  • The attached remote switch utilizes a cable exit from the tail cap that is perpendicular to the bore axis. This allows your cable to be protected from potential snags and impact
  • Shockproof. Dustproof. The most durable weapon light made. Period
  • REIN ships with a "Constant-On" single button switch. This Constant-On switch allows for momentary off use when needed.

Package Contents:

  • Cloud Defensive REIN 3.0 Full Size Weapon Light
  • Battery
  • Charger
  • Remote Switch
  • M-Lok Mount

Cloud Defensive REIN 3.0 Full Size Weapon Light Orderable Models

List of Orderable Models

Cloud Defensive REIN 3.0 Full Size Weapon Light, Black, CD2109-DFS BLK , MPN: CD2109-DFS BLK , UPC: 850016201928 , Code: 2S5-FLW-CDWLR30FS-CD2109-DFS-BLK
Cloud Defensive REIN 3.0 Full Size Weapon Light, Flat Dark Earth, CD2109-DFS FDE , MPN: CD2109-DFS FDE , UPC: 850016201942 , Code: 2S5-FLW-CDWLR30FS-CD2109-DFS-FDE

Cloud Defensive REIN 3.0 Full Size Weapon Light Unavailable & Discontinued Models

List of Unorderable Models

Cloud Defensive OPMOD Rein 3.0 Weapon Light, Gray , MPN: REIN 3.0-DF-S-650 Gray-KIT2023 , Code: 2S5-FLW-CDWLR30FS-REIN-3-0-DF-S-650-Gray-KIT2023
Cloud Defensive OPMOD Rein 3.0 Weapon Light, Coyote Brown , MPN: REIN 3.0-DF-S-650 CYB-KIT2023 , Code: 2S5-FLW-CDWLR30FS-REIN-3-0-DF-S-650-CYB-KIT2023
USED Cloud Defensive REIN 3.0 Full Size Weapon Light, Black, CD2109-DFS BLK, EDEMO1, Condition Fair, Other , MPN: CD2109-DFS BLK-EDEMO1 , Code: 2S5-FLW-CDWLR30FS-CD2109-DFS-BLK-EDEMO-OT-D
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