At critical moments, the Nightstick TSM-13G Rechargeable Sub-Compact Weaponlight with Green Laser gives you the ability to see your situation and the confidence that you are on target. Flick the ambidextrous switch with either hand to activate the 150-lumen light on a momentary or constant-on basis. When it'a time to aim, the 532nm daylight-visible green laser shows exactly where a shot will go. Built to fit the Glock G42, G43, G43X, and G48, the light comes with a trigger lock to employ while recharging. Charging is accomplished using the included Nightstick MagMate USB magnetically coupled charger. Runtime on a full charge totals 45 minutes.