The new Colt Laser Grip worked well during testing, but some may not like the switch placement.
Along with the LE6940 I also had a chance to review Colt's new CGL Foregrip Laser, a joint project with LaserMax that's produced entirely here in the U.S. The unit projects a 635-nanometer red laser aiming sight in either constant or pulse modes. The pulse mode makes the laser quicker to acquire and increases battery life. The sight can hold alignment within 1/2 m.o.a. at 25 yards and sits in line with the bore. The CGL is also equipped with an LED navigation light (blue, white or red are offered).
Functions are activated via a rotating knob on the back of the unit. A push-button on the front provides either momentary or constant-on activation of the laser. Power is supplied by AA batteries that provide 30 hours (constant on) or 60 hours (pulsating) of run time. Mounting is accomplished by a side-lever that locks the unit onto a standard 1913 rail.
In testing I found the selector knob was easy to manipulate and the push-button activation switch simple to use. The grip itself fit my hand fairly well. However, I did not care for the trigger-like push-button activation switch. I don't normally grip a vertical foregrip in the same manner as I do a rifle's pistol grip.
While not my cup of tea, others may feel differently. The CGL retails for $400 and can be purchased through shooting sports retailers.