Crimson Trace CMR-201 Rail Master 5mW Red Laser Sight for Picatinny/Weaver Rail - 633nm, 50ft Range, Black Finish

The Crimson Trace CMR-201 Rail Master is a red laser sight built for shooters who want a fast, reliable aiming reference on pistols, rifles, or shotguns equipped with Picatinny or Weaver rails. Unlike fixed optics, a laser gives you multiple sight options and works well in close-quarters scenarios or when your primary sights are compromised. The CMR-201 locks firmly onto your rail using Crimson Trace's Secure-Lock Technology—it won't shift under recoil or rough handling, so you can trust your zero.

What sets this laser apart is simplicity. Ambidextrous activation tabs let you tap it on and off from either side with your thumb or trigger finger, depending on your grip and shooting position. There's no fumbling with switches or modes. The 5mW red laser runs for over four hours on a single 1/3N Lithium battery, and an automatic five-minute shutoff protects battery life if you forget to switch it off. Factory sighted at 50 feet, the CMR-201 is fully adjustable for windage and elevation, so you can dial it in to match your rifle or pistol's point of aim.

The kit includes four interchangeable inserts, letting you adapt the sight to different firearm platforms and rail configurations. Whether you're running a carbine, a tactical shotgun, or a railed pistol, the CMR-201 covers your bases without requiring different lasers for each gun. It's rugged, fast, and built for hunters and shooters who value speed and accuracy under pressure.

Key Features

• 5mW red laser (633nm) with firm Secure-Lock Technology—no movement under recoil
• Ambidextrous tap activation for intuitive on/off control
• Auto shutoff after 5 minutes to preserve battery
• Over 4 hours runtime on one 1/3N Lithium battery
• Fully user-adjustable windage and elevation
• Four interchangeable inserts for different firearm platforms
• Compatible with Picatinny M1913 and Weaver-style accessory rails
• Black finish

Specifications

Frequently Asked Questions

What rails does the CMR-201 fit?

The Rail Master is designed for Picatinny M1913 and Weaver-style accessory rails found on most modern rifles, shotguns, and railed pistols. The secure lock ensures it won't shift under recoil.

How long does the battery last?

The CMR-201 runs for over four hours on a single 1/3N Lithium battery. An automatic five-minute shutoff activates if you accidentally leave the laser on, extending battery life between changes.

Can I adjust the zero after mounting?

Yes. The laser is factory sighted at 50 feet but is fully adjustable for windage and elevation, so you can zero it to your specific firearm and shooting distance.

What's included in the box?

The CMR-201 comes with four interchangeable inserts to adapt the sight to different firearm platforms and rail configurations.