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The Crimson Trace CMR-301 Rail Master Pro solves a headache most of us know well: fitting both a light and a laser onto a rifle without running out of rail space. It packs a high-visibility green laser and a white light into one forged aluminum body that mounts side by side, so you get aiming and illumination from a single low-profile unit instead of juggling two separate accessories that fight over real estate and add weight.
The white light peaks at 1000 lumens and steps down to 500 and 150-lumen settings, which is handy for stretching runtime or keeping the beam from washing out the laser dot up close. The 532nm green laser is genuinely easy to pick up, even in daylight where a red dot tends to disappear, and it adjusts for windage and elevation so you can dial in a solid zero. A mode selection dial lets you choose light only, laser only, or both together, and the icons glow in the dark so you can find the right setting when the lights are out.
Controls are one of the strong points here. You can work everything from the button by the mode dial, or plug in the included remote pressure pad to place activation right under your support-hand thumb. When the remote is connected, the rear button deactivates so you are not fighting two switches. A quick tap gives you constant-on, and a press-and-hold gives you momentary light that shuts off when you let go, which is what most people want under stress.
The CMR-301 runs on a single rechargeable battery that charges through a USB-C cable right at the unit, so there is no separate charger to lose. Plan on roughly an hour of continuous run time, which stretches a long way with momentary use. It ships with both Picatinny and M-LOK hardware and needs at least 2.75 inches of rail. The forged aluminum housing carries an IPX7 waterproof rating, so rain and hard field use are not a concern.
Yes, it ships with both a Picatinny (M1913) adapter and an M-LOK adapter, along with the mounting hardware and a rechargeable battery. You just need about 2.75 inches of open rail to attach it. Some people like to add a dab of blue thread locker to the screws to keep things put under recoil.
The CMR-301 uses a single rechargeable lithium battery that charges through a USB-C cable plugged right into the unit, so there is no separate charging dock to keep track of. Expect roughly an hour of continuous run time, which lasts considerably longer with momentary use. The included cable is all you need to top it off.
Green lasers show up far better to the human eye, especially in daylight where a red dot can be tough to see. The CMR-301 uses a 532nm green laser that is easy to spot at typical rifle distances. It also adjusts for windage and elevation so you can get a clean zero.
Absolutely. There is a button next to the mode dial on the back of the unit that operates the light and laser directly. When you plug in the remote pressure pad, that rear button deactivates so the two switches do not conflict, giving you a clean single point of control wherever you place the pad.
| UPC | 850013143085 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 01-00410 |
| Dot Size | 0.50" at 50 Ft |
| Length | 8 |
| Mount Type | Picatinny Rail |
| Package Height | 3.0 |
| Package Width | 6.0 |
| Product Type | Accessory-Lasers and Sights |
| Shipping Weight | 0.92 |
| State Restriction (Guam) | NO SALE TO GUAM |
| State Restriction (PR) | NO SALE TO PUERTO RICO |
| Color | Tan |
| Model |
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