Bright & Tough Suppressor Sights - Sig Sauer 9mm/.357Instantly visible sight picture in no light or low light Increased daylight dot visibility Enhanced protection from heavy recoil and harsh cleaning solvents Evenly distributed light from tritium lamps Trijicon Bright & Tough Suppressor Night Sights are three dot tritium iron sights that allow shooters the ability to line up their sights in both bright and low light situations. While standard height sights do not provide an aiming solution when using a