Equip your GLOCK with the GLOCK 33578 Rear Night Sight for G42/G43, designed for optimal accuracy and target acquisition in any lighting environment.These night sights feature high visibility tritium inserts that enhance your shooting experience, providing a clear sight picture when it matters most.Size 6.1mm slim for effortless installationCompatible with models G42 and G43Upgrade your firearm's performance and gain confidence in low-light situations with these reliable night sights.