Factory HK Fully Adjustable Sights for USP TACTICAL in calibers 45acp, 9mm, 40S&W. Intended for use with SUPPRESSOR installed. Becoming Harder and Harder to find. Turn your base USP into the tack driver it is with these sights. Anti-Glare Serrations on Rear Sight Blades, Give Perfect Sight Picture. Late 1990’s Vintage Show the Superb HK Quality of that time. The Black-on-Black deep HK Color gives the sights a total factory perfect look and finish. Clear, crisp white windage and elevation markings for micro-sight adjustments for any bullet weight and loading. Truly the best that HK ever offered for the USP platform. Buyers Note: Professional Gunsmith installation is “HIGHLY” recommended for these sights. Buyers Note: Does not fit USP Compact Series.