| 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 |
| Brightness | 1000 Lumen |
- 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.














Will B. Verified Buyer –
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.
Tom Kelley Verified Buyer –
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.
Crimson Trace CMR-301 Railmaster Pro Unboxing – Works great! Verified Buyer –
Alex (Gmail) Verified Buyer –
Fits perfectly and very high quality laser light combo. The only thing that doesn’t make it perfect is the color, I wish they could offer it in fde color, it’s bronze. But other than that very satisfied with this combo.
Chris Verified Buyer –
Product was broken upon delivery with the pressure switch not working, I ordered a replacement and they said it was delivered, I never received my replacement and never got a refund from the seller.
Craig Titsworth Verified Buyer –
Great bright green laser light, powerful flashlight, and holds zero well. Only issues I had was the fluctuation of the price of this thing (seemed like a few times a day the price would change) and the green laser needs to be on the flashlight side of the box. Because rhe green laser is on the left side of the box, it is on the inside of my rifle, as I am right handed. When it gets time to shoot, I grip my hand guard with my left hand on my AR and my thumb gets in the way of the green laser. I have to adjust my hand or use a grip to prevent this. Not a dealbreaker, but it is something to think about.
Josh M. Verified Buyer –
Great laser/light for the price! I’ve always had good experiences with Crimson Trace. Push pad is great and easy to mount.
Theodore E Derrick Verified Buyer –
Mounts easily — easy to align — provides good brightness out to 15 yards — have not tested any further