Designed specifically for use in beretta 92 and 96 m9 m9a1 m9a3 and taurus pt92 pt99 pt100 and pt101 pistols the lms-1441 replaces the factory spring guide assembly with a high intensity red laser sighting system for advanced target acquisition.Easily user installed without the need for gunsmithing or special tools.This guide rod laser is for full size pistol only.*note- this guide rod will not fit the 92a1 or the 96a1.Power Switch: Ambidextrous On/OffWavelength: 635 nmDot Size: .75" @ 25 ydsPower: 5mWRange: 20 ydsWeight: 0.40 ozBattery: 377Laser Color: RedFirearm Fit: Beretta 92 96/Taurus 92 99 100 101Adjustments: NoFinish: BlackMount Type: Guide Rod