Designed specifically for use in Glock Subcompact/Slimline pistols, the laser sight replaces Glock's factory spring guide assembly with a high intensity laser sighting system for advanced target acquisition. Easily user installed without the need for gunsmithing or special tools, the Guide Rod Laser is constructed with rugged, precision components including a stainless steel tube.FeaturesBright 5mW aiming point is closer to the bore than any otherManufactured with premium raw materials to ensure superior reliabilityProgrammable for steady or pulsing beam that makes target easier to spotDistinct ambidextrous On/Off switch reinforces safe handlingRugged internal design does not restrict holster or grip selectionFactory-aligned to stock ballistics for guaranteed POA/POI accuracy DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.