Front Sight Base FSB .625" Diameter
This sight base comes with taper pins and all internals for a front sight post and measures .625 inches in diameter for lightweight and pencil barrels. Pinning this FSB to your barrel will require gunsmithing.
Does not have an F mark but is the same height as an F marked FSB and is made the same way.
- Correct Mil-Spec Height and material
- Taper pins x2
- Front Sight Post Assembly