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Crimson Trace CMR-201 Rail Master Universal Red Laser Sight
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- POWERFUL RED LASER: Features a 5mW peak, 620-670nm, Class 3R visible red laser - the brighest beam allowed by law.
- INSTANT ACTIVATION: Ambidextrous Tap-On / Tap-Off Controls for immediate laser activation from either side of the unit.
- OVER FOUR HOURS OF BATTERY LIFE: Powered by one 1/3N Battery (included). This product is eligible for Crimson Trace’s Free Batteries For Life Program.
- FITS most pistols, rifles, and shotguns with M1913 Picatinny or similar Accessory Rail & 1-1/16" between the recoil lug and the trigger guard.
- EASY INSTALLATION: User installed- no gunsmithing required. Four fit inserts are included for specific firearm fit. Factory sighted at 50 feet, but is fully user adjustable for Windage and Elevation with provided tool.
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From the manufacturer
Crimson Trace CMR-201 Rail Master Universal Red Laser Sight
Universal fit laser sight from the industry leader
The Crimson Trace CMR-201 Rail Master Universal Red Laser Sight is a powerful and versatile laser sight designed to fit rail-equipped pistols, rifles and shotguns with modern (Picatinny M1913 or Weaver-style) accessory rail. Extremely versatile, the CMR-201 Rail Master includes four (4) different inserts to adapt to various firearm platforms to ensure a proper fit. The laser sight offers a powerful 5mW red laser that will run for over four (4) hours on a single 1/3N Lithium battery (included). Completely user adjustable for windage and elevation.
- Universal Fit
- 5mW Red Laser
- Instant Activation
- Ambi Controls
- 4 Included Fit Inserts
- 5 Min Auto Shut Off
- Windage & Elevation Adjustments
Packed with Features
Ambidextrous controls offer instant tap-on / tap-off activation with a 5 minute auto-shut off for battery conservation should the unit be unintentionally activated. Complete user-adjustable windage and elevation adjustments.
Fits Rail-Equipped Firearms
The CMR-201 is universal in design and will fit virtually any pistol, rifle or shotgun with Picatinny M1913 (or Weaver-style) accessory rails. Will fit most rail-equipped pistols with a minimum of 1 1/16" from recoil lug.
Custom Fit Inserts
Rail Master includes four custom fit inserts for fine tuning your rail fit on a myriad of pistols including GLOCK, Ruger, Sig Sauer, Smith & Wesson, Springfield Armory, Walther and more. Fit guide is included in factory packaging.
The CMR-201 Rail Master is a powerful and versatile laser sight designed to fit rail-equipped pistols, rifles and shotguns. The Rail Master locks onto Picatinny M1913 or Weaver-style accessory rails with Crimson Trace's Secure-Lock Technology. Once locked on, it will not move under recoil or handling. The universal design of the Rail Master offers quick Instant Activation™ by simply "tapping on" and "tapping off" from either side with the ambidextrous activation control tabs.
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Laser sights have been around for awhile, but in the 21st century they have really come into their own as an excellent augment to the traditional notch or "iron" sights that were perfected in the 19th century. Lasers have the advantage of very quick target acquisition in lower light conditions and/or short range. At longer ranges in bright sunlight lasers are not nearly as effective because it is simply harder to see that red dot. But even in bright conditions at short range (the range that you would likely need a laser to acquire a "bad guy" target) a laser can be effective. Since the laser in no way interferes with the shooter's ability to simply use the conventional "iron" sights if that is appropriate, the laser is a wonderful supplemental sighting system. Under appropriate conditions many shooters myself included will get tighter and better shot groups using a laser than with conventional sights, and it is great fun to watch the bullets strike precisely where the red dot is placed.
The Rail Master design plainly emphasizes one of Crimson Trace's strong points which is precision mounting. All CT products emphasize this. This unit adheres very sturdily to the pistol to reduce or eliminate drift in the sight that would require the need to re-zero the laser. There are two cross-bolts that fasten the Rail Master to the pistol's Picatinny rail, and it appears to me that this scheme was intentionally designed to over-engineer the mounting hardware of the laser. I will update this review if this assumption proves false after about 1000 rounds. The mounting process is pretty simple. First you select one of four "spacers" to space the laser as between the trigger guard and the end of the rail. The SR22P does well with insert #2, which the manual said was suitable for the very similar-sized Walther P22. Then you simply loosen the two mounting bolts and slide the sight onto the rail. This can be done in under one minute.
To zero the laser is very easy once mounted. My preferred method is to first zero the "iron" sights on the pistol at the shooting range. Then, one simply adjusts the windage and elevation settings of the laser dot to move the dot precisely where the already-zeroed perfect sight picture indicates. It is important to pick a range of about 30-50 feet to do this zeroing. A common mistake is to try to adjust the laser at a short range, where the parallax between the placement of the sight and the laser becomes significant. If you zero at a longer distance this difference becomes insignificant. In fact, zero as between 30 and 50 feet is functionally the same in my experience. I have found that by using this method I generally do not have to adjust the laser at all once I get to the range. That was the case with the Crimson Trace Rail Master.
The Rail Master is slightly bulkier than the very similar Laser Max Uni-Max Micro laser sight. This is because of the two cross-bolts as well as the "spacer" scheme described above. Functionally the two lasers are very similar. Both are activated by tapping an ambidextrous paddle button along the side of the laser. Here I am going to say that the Crimson Trace laser is superior ergonomically. The Rail Master activation switch sits further back towards the trigger guard as compared to the Lasermax, and it is more instinctive to activate. The Laser Max switch is quite good, but a smaller shooter (like me) has to slightly strain the fingers to reach it. The Crimson Trace does not require this as it sits further back.
The Rail Master projects a slightly brighter dot than does the Laser Max which surprised me. The Laser Max is plenty adequate and the difference is not great but the difference appears to be real.
The Laser Max does have a feature that the Crimson Trace lacks -- the pulse or "strobe" option. The Laser Max allows the user to toggle between an 11 Hertz strobe setting or a constant setting. The Crimson Trace laser does not have a strobe setting. Another nice attribute of the strobe setting is that it reduces the duty cycle of the laser by about 50%, thereby increasing battery life.
Overall the Lasermax and the Rail Master are both superbly designed products that will give a lifetime of service. I have one of each. (By the way, they use the same batteries.) Overall, I would give the edge to the Crimson Trace due to its better ergonomics and more robust mounting scheme. But you won't go wrong with either. The Crimston Trace Rail Master is highly recommended without reservation. RJB.
1. Installation was clear and a breeze. It fits perfectly and was easy to sight in and adjust.
2. The operation is straight-forward and intuitive. Just tap either side and the light comes on or off.
3. Maintains accuracy even after several hundred rounds. I haven't had to re-sight it since I installed it. Stays well affixed to the rail and hasn't come lose even after all that time.
4. Customer service is exceptional. I did have the battery door vibrate off - although it's not clear how that exactly happened. Just know when I got home one day, the door (and battery) were missing. Called customer service and they immediately sent out a new battery door and battery free of charge and a couple days later I was back up and running. That's worth it compared to cheaper alternatives and I would buy from Crimson Trace time and time again.
If you are considering this - take a look at their green laser model and read the reviews on it. That model wasn't available when I bought mine and I've read that green lasers are the way to go (faster sight acquisition). Although I have to say, I can immediately pick up the red dot with my eyes in a variety of lighting conditions. Still - there are some good comparison reviews out there and you can decide for yourself.
Only downside is that in bright sunlight outside, it's generally impossible to see the dot. But in that case, the fixed sights are much easier to acquire so it's not that big a deal for me and not why I bought the sight - I bought it for home defense in low light conditions.