Features: Green fiber optic insert front sight is bright and easy to see in bright light Serrated rear sight to prevent glare and reduce distractions from the front Fits Glock generations 1-5 Compatible with Glock MOS models User replaceable fiber optic insert CNC machined in Fort Worth, TX Kit Includes: front sight with green fiber installed, rear sight, replacement orange fiber rod, insert with instructions Glock 42, 43, 43X, & 48