XS Sights R3D 2.0 Night Sights For HK VP9 OR Standard Height Green Glow Front/Rear w/ Green Front Outline HK-R201P-6G. Their second-generation R3D night sights are engineered to give you a brighter, stronger set of sights. Easily install their sights with a set that requires 50% less force for installation. R3D sights are built to withstand years of EDC use and abuse. The set drives focus downrange using a serrated blacked-out rear sight and a dual-illuminated glow photoluminescent front sight. R3D sights are the brightest notch and post option for fast and accurate shooting in bright and low light. Visible when seconds count! R3D 2.0 sights are the premium solution for a traditional notch and post sighting system. The set is engineered to provide a brighter, stronger, and easily installable sighting system for increased defensive preparedness. Glow lamp in front and rear sight glows in low light/no light. High-contrast colored front sight. Glow Dot absorbs ambient light and glows in low light. Serrated rear sight to reduce glare. BlackNitride finish for wear and corrosion resistance. Black PVC rings to enhance glow in rear sight. Anti-reflective rear glow lens. Rear sight ledge for one-handed slide manipulations. Durable CNC machined steel. Fits standard holster options. Fits HK VP9 OR. Manufacturing defects vary by individual Brands. We will give instructions as what is to be done on a case by case basis.