LASERPRO Green Rechargeable LCL-R Laser Sight with LED Light for any pistol with rail that has 1.25" between the cross-notch on the rail and the front of the triggerguard, including but not limited to: Ruger SR9, SR40, RXM, Security-9, American, 9E, SR45, P345, 57 & Mark IV Tactical, SR1911, P95 pistols Extremely bright 520nm Green Laser Green laser sight is brighter than red especially for daytime use. FDA Class IIIa Laser Product (Does not exceed Class IIIa emission limits. Complies with all FDA Class IIIa regulations), less than 5mW power output. Long-Range Laser Sight: Up to 100 yard daylight range and over 2 miles at night. Activation buttons on both sides. 2 modes for both laser and LED light: steady beam & strobe mode. Easy to change modes by simply double clicking the buttons on either side like you would a computer mouse.