The list keeps growing for pistols compatible with Viridian laser sights.

Now featuring the only available green laser sight for the Kahr 9mm and .40 S&W handgun, the Viridian Reactor 5 offers the exclusive ECR Instant-On capability — just pull the pistol from its holster and the green laser comes on.

“With its pistol-matched design, ECR Instant-On activation, two-color battery level indicator and included holster, the R5 represents a complete carry package,” Viridian says. “It maximizes the function of the pistol with virtually no added bulk or weight.”

The Reactor 5 for Kahr 9s and 40s comes with a Viridian hybrid holster to activate the Instant-On capability. The Reactor 5 is said to be up to 50 times brighter than conventional red lasers and is visible in both day and night shooting conditions, indoors and out.

The sight carries an MSRP of $239.