This is a Fiber Optic Florescent Green front sight for the mil spec, 70 series, A-1 1911 Colt style pistols & Clones. Made from CNC machined Bar Stock, No MIM. .055 staking post & .195" in height. Fiber optic rod not installed, but included. Not installed so that the staking operation can be completed during installation. The fiber optic rod is easily installed by melting ends with a match or gluing. Top Quality Professionally made sight.