Meprolight's self-illuminated night sights, specifically designed for the H&K USP in 9/40, enhance your shooting accuracy in all lighting conditions. Engineered as direct replacements for the standard sights, these Tru-Dot sights provide superior visibility, whether in daylight, twilight, or nighttime scenarios. With a tritium-powered design, they eliminate the need for batteries or switches, ensuring preparedness at all times. Crafted with durable materials, Meprolight sights are trusted by top firearm manufacturers and are built to withstand rigorous use. Upgrade your shooting experience with a reliable, combat-proven solution that significantly improves your hit probability against both stationary and moving targets.MEPROLIGHTs combat-proven self-illuminated night sights enable you to upgrade your capabilities to hit stationary or moving targets under low-light conditions with dramatically increased hit probability. Designed as replacement parts for the standard weapon sights, Meprolights Self-Illuminated night sights can be mounted directly with minor modifications. Meprolight leads the world in OEM and after-market self-illuminated sights for handguns. Designed to replace the existing front and rear sights, the highly visible Tru-Dot sights are perfect for daylight, low-light, and nighttime conditions.Features :First choice of leading firearm manufacturersNo batteries, no switches - always ready for actionTritium poweredHighly durable structure