Ensure precise targeting at all shooting distances with our rail-mounted lasers in the Spartan Series. Once mounted, this no-hassle, adjustable fit red Spartan laser (Model No. SPS-R) maintains precision accuracy over extensive live fire. The laser automatically deactivates after 10 minutes to conserve power. The cross bar uses our Rail Vise Technology for the LaserMax Spartan laser sight to let you mount it anywhere along the raileven with firearms that only have one rail slot. The design fits both compact and full-size rails.