Crimson Trace CMR-301 FDE Railmaster with Green Laser, Adjustable 1000 Lumen LED Flashlight and Rechargeable Battery for Shooting, Competition and Range
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Features
- DIMENSIONS: 3.4" L x 2.9" W x 1.2" D with a weight of 6.4 ounces
- BRIGHTNESS: Features 1000 lumen LED light and a 5mW peak, 620-670nm, Class 3R visible green laser that is in conformance with and complies with 21 CFR 1040.10 with a max power output of 5mW for a Class 3R Green Laser - brightest beam allowed by law
- RUNTIME: 1 hour of battery life that runs on (1) 18350+USB C rechargeable battery (included) with Laser, Light, and Laser + Light modes
- EASE OF USE: Laser and light can be activated via push button or remote Instant Activation pressure pad which also attaches to accessory rail - Adjustable flashlight peaks at 1000 lumens
- VERSATILITY: The Rail Master Pro can be operated as a standalone unit or attach the 6 remote switch for customizable activation and selection - Optional 6 remote switch included
- GUARANTEED: This product is covered by the Crimson Trace Protect Limited Lifetime Warranty. For questions or concerns regarding warranty, please visit the Crimson Trace website.
Description
The CMR-301 Rail Master® Pro offers robust power and versatility for rail- equipped rifles and carbines. The laser sight + tactical light system provides 1,000 lumens (peak) and a powerful green laser for precision targeting in variable lighting conditions. The CMR-301 is user programmable and may be operated with a pressure pad or tail-cap. Fits standard ARtype modern sporting rifles with M1913 Picatinny or similar accessory rails measuring at least 2.75” in length.
Color: Tan
Brand: Crimson Trace
Material: Plastic
Power Source: Battery Powered
Water Resistance Level: Water Resistant
Item Weight: 6.4 Ounces
Mounting Type: Picatinny Mount
Product Dimensions: 3.4"L x 2.9"W x 1.2"H
Number of settings: 3
Light Output Maximum: 1000 Lumens
Color: Tan
Brand: Crimson Trace
Material: Plastic
Power Source: Battery Powered
Water Resistance Level: Water Resistant
Item Weight: 6.4 Ounces
Mounting Type: Picatinny Mount
Product Dimensions: 3.4"L x 2.9"W x 1.2"H
Number of settings: 3
Light Output Maximum: 1000 Lumens
Auto Part Position: Rear
International Protection Rating: IP65
Manufacturer: Crimson Trace
UPC: 850013143085 850013143436
Item Package Dimensions L x W x H: 10.75 x 8.5 x 3.46 inches
Package Weight: 0.41 Kilograms
Item Dimensions LxWxH: 8.94 x 6.22 x 3.31 inches
Brand Name: Crimson Trace
Warranty Description: Limited lifetime.
Model Name: CMR-301 TAN Railmaster Pro
Suggested Users: unisex-adult
Style: Tan
Included Components: Laser, Batteries
Size: 3.4" L x 2.9" W x 1.2" D
Date First Available: July 14, 2021
Frequently asked questions
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To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
This laser/light combo is everything you want in a rifle setup. Laser is strong and white light is super bright. Easy mounting and set up. CT knocked it outta the park with this one. Highly recommend!
Reviewed in the United States on October 31, 2025 by J. Dahl
Thing works extremely well, and considering it's under $250, it's pretty awesome. I used the Pick mount and tape switch. No issues at all firing 450+ rounds in under 4 hours during a carbine course. I would like to say something about a review mentioning a "vertical or horizontal offset". Every aiming laser, from a Harris ATPIAL to a no-name airsoft has an offset. The laser should be mounted parallel to the barrel so that the laser point and the point of impact are a known constant. Intersecting the POI with the laser at X distance is useless unless you are exclusively shooting from X distance, which is ridiculous. However, if you know your POI will always be 1" left and 2" down from your laser point, you now have something useful screwed to your blaster.
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Reviewed in the United States on March 28, 2024 by Tom Kelley
I now own 3 of these, all of which have been purchased for different prices. The price seems to fluctuate quite a bit on these an I'm not sure why. Even at the highest price I paid for one of these, it's still worth the money. I was toying with the concept of having not just a light but a laser also for some time and decided to give one of these CMR-301s a try. One of my biggest regrets is having waited so many years before trying a laser. I was told so many times that lasers were silly and that it will slow you down. After shooting a couple of practice sessions and a competition with this light/laser combo, I have found my results to be the opposite of what I was told my whole life. All of us running lights and lasers, basically for our first time, all found it to be faster. Just shoulder the rifle like you normally would, but instead of looking through an optic, just use the laser instead. I also found this to be a huge help when engaging multiple steel plates from the same position. Even though I could easily see the steel plates when illuminated with the white light, once I look through my red dot sight, it was really hard to make out the targets. Once you start firing, you will be surprised at how much smoke is in the air because this isn't something you see during the day time. The more you fire from that same position, the worse it gets and the harder it is to see through your optic. But using the laser without looking through the red dot made it so much easier to make out the targets in that smoke and engage the plates at 100 yards. Easier translated to faster. The light output is decent. It says 1000 lumens, and it very well could be that, but it is more of a flood light rather than a spot light. I only engaged steel plates out to 100 yards, but I'm not sure how much more throw this would have beyond that. But it was plenty of light to still identify and effectively hit the 2/3 IPSC plates at 100 yards. The laser is green, which is what I prefer. I have a light and laser I run on a different rifle, both of which were quite a bit more expensive than this Crimson Trace, but the red laser was more difficult to see even though it's rated at the same output (5MW). At night, the CMR-301 laser is plenty visible and I could see it illuminate on a mountain range that was well beyond our 100 yard target. Keep in mind that these are not really daylight visible due to FDA restrictions so you will need to zero this laser in low light conditions. The mounting system is plastic and was a concern of some reviews I read. I have not experienced an issue yet with either the MLOK mounting plate or the Picatinny mounting plate. Both lock down extremely well and I have not yet lost the zero on the lasers. It's important to note that the underside of the CMR-301 is shaped to fit the octagonal shape that many handguards have. So on something like a CZ Scorpion Evo Micro with an HBI handguard, even though the handguard sides are M-LOK, because of that octagonal shape to the underside of the CMR-301, I could not get the M-LOK mount to work on the tall and flat surface of the HBI handguard. On flat surfaces like that handguard has, you will need a picatinny section to go into the M-LOK slots and it should hopefully mount that way. I don't see this being an issue for most M-LOK AR handguards since they usually have that octagonal shape. The battery is rechargeable and I absolutely love that CT decided to do this. I am tired of feeding my lights disposable lithium batteries. So far I have no had any issues with these lights killing the batteries when not in use. I had looked at some other light/laser combos and this was an issue with some of those units killing batteries in a matter of days. I like that CT also gives you the option to select if you want the light by itself, laser by itself, both, or off. I just run both but it's nice they gave that option. I do appreciate that the back of the light laser has a push button so that you are not required to use the pressure switch. On one of my rifles, the rail space is limited so rather than using the switch, I just activate the light/laser with my thumb. CT was smart and also designed this to have momentary (you just hold the pressure switch or keep pressure on the push button), or constant on by clicked the push button or by tapping the pressure switch. If you have the pressure switch installed, you can still use the push button. That was also clever so that if the pressure switch malfunctions, you have a backup way to still activate the light. The biggest thing I wish they could improve on is the switch itself. The light/laser combo has both MLOK and Picatinny mounting options, but the switch is only picatinny. I prefer running the light/laser at 12 O'clock, but this isn't possible on something like MY CZ Scorpion Evo Micro. Instead, I mounted the light/laser combo on the side of the handguard (I chose 3 O'clock). I didn't like the switch on the sides of the handguard because they are M-LOK and would first require a section of M-LOK compatible picatinny. This makes the switch sit too far out from the handguard surface and makes it uncomfortable and awkward to activate the switch. I ended up putting the switch at 12 O'clock, but it is quite the reach on a tall handguard like the HBI handguard I have. It's really hard to beat this light/laser combination especially for the price. Hopefully they hold up over time and extended use but so far, I have been very happy with them.
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Reviewed in the United States on March 8, 2022 by TMAT
Great laser /light combo. Little pricey but you pay for what you get. Very dependable.
Reviewed in the United States on February 28, 2026 by Amazon Customer
The equipment doesn't work... im guessing the Battery its expired. Im trying o To find one but this is something a customer shouldn't need to deal
Reviewed in the United States on January 23, 2026 by Jose ainagas
have you always wanted a peq? Have you looked at any peq and go " oh F$%^ thats a lot of money" OR " do i need all of this?!! as a civilian?" . Well this might be for you, its a flashlight and green laser (daytime) . This thing shines brighter than the north start the day jesus was born, i dont even have to aim or get a cheek well.... lmao i see dot i shoot it go boom. simple cheap practical and perfect for a civilian
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Reviewed in the United States on August 22, 2023 by Dave
Nice laser light unfortunately the plug-in control broke almost instantly. If they had an aftermarket control for it, it would probably be pretty decent.
Reviewed in the United States on January 20, 2025 by Will B.
Easy mounting. Very durable. Amazon price typically beats most sports stores.
Reviewed in the United States on November 22, 2025 by Amazon Customer