Crimson Trace LL-807G Laserguard Pro Glock Full-Size/Compact Light And Laser Sight - Green - LL-807G Laserguard Pro for Glock Full-Size and Compact pistols is a powerful green laser sight and 150 Lumen LED white light in a single compact unit. This illumination and targeting product is activated with Crimson Trace's famed Instinctive Activation, which activates the unit via a front activation button when the pistol is held in a normal firing grip. The LL-807G features four modes of operation, a Master On/Off Switch, is completely user-installed in moments with no modifications to the gun frame and the laser is user-adjustable for windage and elevation. Offers 2 hours of battery with a single CR2 Lithium battery. This model will fit the following GLOCK pistols: Gen3 G17, G17L, G19, G22, G23, G24, G25, G31, G32, G34, G35, G37, G38, Gen4 G17, G19, G22, G23, G31, G32, G34, G35, G37 and Gen5 G17, G19, G19X, G45. Green Laser Sight 150 Lumen White Light Adjustable Sight 2 Hours Of Battery Life 4 Modes Of Operation This Model Will Fit The Following Glock Pistols: Gen3 G17, G17L, G19, G22, G23, G24, G25, G31, G32, G34, G35, G37, G38, Gen4 G17, G19, G22, G23, G31, G32, G34, G35, G37 And Gen5 G17, G19, G19X, G45.