LG-426M and LG-429M laser sights for Sig Sauer P226, P228, and P229 semi-automatics offer the waterproofing that U.S. Navy SEAL teams have come to depend on, as well an aggressive grip texture that functions well with or without gloves. This front-activated model brings Crimson Trace's latest features to these international military, law-enforcement and civilian pistols. The Lasergrips incorporates a smaller diode housing for greater holster compatibility and improved handling for left-handed shooters. Crimson Trace also extends one free set of batteries a year for life when you register you Crimson Trace product on the manufacturers website. Notes:User Adjustable Windage and ElevationQualifies for free batteries for life from Crimson TraceCrimson Trace Lasergrips are factory-sighted to approximate point-of-impact at 50-feet.