This is a Crimson Trace Corporation LaserGrip known as the Lasergrips, model LG-852.
Specifically designed for the unique contours of 4th Gen GLOCK Subcompact pistols" the rear activation LG-852 offers a repeatable sighting advantage for your pistol. These Lasergrips provide the versatility of instant activation from a rear switch.
Features:
Pressure activation
Red laser
Factory sighted at 50Ft
.5 inch diameter at 50 feet
