The new GLOCK BOLD sights by AmeriGlo combines the best features of GLOCK sights. A durable, bright-orange outline surrounds a Swiss made green tritium insert, creating a fast, eye-catching front sight. Paired with a serrated, traditional squared-notch tritium rear sight, the BOLD set is ideal for all environments. Machined in the USA, the BOLD series set presents an accurate and easy-to-acquire sight picture. .165” Front fits: Gen3 and Gen4 G20, G21, G29, G30, G31, G32, G36, G40, G41 PLEASE NOTE: Green tritium sights are depicted as they would look in low light settings