Adjustable Rail System - the blue laser light combo offers you the maximum location adjustment range onto your 21±0.5mm rail.
For 21±0.5mm Rail with Cross Slot - As long as your pistol has a 21±0.5mm width rail and cross slot, then the red/ blue/ Green Laser Light combo will fit nicely.
Bright & Adjustable Laser Sight - the red/ blue/ green laser output is <5mW, Class IIIA. The laser sight is adjustable with included Elevation and Windage Allen Key.
Rechargeable & Shockproof - The flashlight laser combo is Aluminum + Polymer, Lightweight, durable and shockproof. And it is powered by a built-in rechargeable battery. A full charge takes about 2 hours by magnetic USB cable. The full battery support 5hr/laser sight; 45 min/ flashlight & laser sight; 60 min/ Flashlight only. Red light indicating for low battery.