Front Sight Base F – FSB (ID .625) – Milspec for Flat Top Uppers

The “F” marked forged front sight base is a hard product to find. Mil-Spec for rifles issued to the troops require taller front sight bases on all flat top AR rifles. (.625″)

Designed to match the height of Mil-Spec height rear iron sights.

These are new and are not yet drilled for taper pins, and should be installed by a qualified gunsmith.

This includes front sight base only. (Not included are front sight post assembly, sling swivel assembly, and taper pins.)