American Rifleman reviewed Viridian Enhanced Combat Readiness (ECR) System with new X5L laser/light and TacLoc holster. It has a unique feature that allows user to set up how the green light could be used. With the proprietary TacLoc holster, If the green laser was on before holstering, it will turn off and then reactivate when the gun comes out of holster. You can also holster with the laser off and it will stay so until you turn it on. It also has 154 lumen light. It uses CR123A batteries.
Note: New X5L(Gen 2) units with serial numbers X002830 or higher are ECR capable.
Price(MSRP) is $409 for X5L laser/light, TacLoc holster for $49