The LaserMax LMSRMSR Red Rail Mounted Laser is a precision-enhancing accessory designed for Ruger SR22, SR9, and SR40 pistols, delivering a decisive targeting advantage in low light with a sleek integration that complements the pistols profile and features an integral Picatinny rail for the attachment of a tactical light. This 650 nm red laser operates at 5 mW and projects a 0.63-inch dot at 20 yards, with a practical 50-meter range, and offers both steady and pulsed beam options to enhance target identification and speed under varied conditions. The unit provides ambidextrous on/off control, windage and elevation adjustments, and a compact weight of about 0.50 ounces, ensuring minimal impact on balance and handling. It mounts securely on Picatinny rails or the trigger guard, and is powered by a small 1/3N battery, contributing to a lightweight, durable build that maintains reliability during extended field use. Commissioned as an upgrade by Sturm Ruger and marketed as a factory-equipped option for SR22s while remaining aftermarket compatible with Ruger SR22, SR9, and SR40 pistols, this LaserMax laser sight integrates seamlessly into tactical setups, enhancing illumination, aiming precision, and rapid target acquisition.