This rail mounted laser was introduced by Crimson Trace, an American manufacturer founded in 1994. Crimson Trace CMR-206 Rail Master Universal Green Laser Sight If you’ve been looking for a good combination of light and laser, don’t go any further and get yours now.
It also comes in a green laser version with a slightly lower lumen output and battery life. This rail mounted laser/tactical flashlight comes with an ambidextrous momentary/steady on and off switch and it can be mounted quickly and easily and thanks to the rail locating keys, it can be mounted almost on any handgun with Picatinny or Glock style rails. If you switch the device to laser only, it lasts up for as long as 11 hours. On the other hand, the red laser boasts power output of 5mW, which is maximum among Class 3R Red Lasers. The 125 lumens output of this tactical flashlight can be considered a downside, as it’s not nearly as much as other lights offer. It’s powered by 1 CR2 battery that comes with the rest. When LED and laser are on, you can expect a battery life of 90 minutes, which isn’t much, but the combination of both light and laser compensate for that. It’s quite compact and ultra lightweight at 2.7 x 1.2 x 2 inches and the weight of 2.88 oz.
Streamlight TLR-4 Compact fits a broad range of sub compact, compact, and most full size handguns and it comes with rail locating keys for easy attachment to various gun brands.