LaserMax Guide Rod Red Laser Sight H&K VP9 Pistol

From MidwayUSA

The LaserMax guide rod laser sights gives you the additional convenience of a laser sight with no external additions to your weapon. Unlike all other laser sights, the guide rod laser is completely internal and simply replaces the factory guide rod and take down lever. With the guide rod sighting system there is no need to replace holsters, remove tactical lights or grips because the laser sight fits right into your current setup with no gunsmithing required. Not only are these units convenient, but they are reliable and built with high quality material and Wolff Gunsprings, so you know your getting the best there is.