Knights Armament M4 Folding Front Sight 99051

Knights Armament Company 99051 Flip Up Front Sight

Originally designed for the US military's SOPMOD rifle enhancement program, the KAC M4 Folding Front Sight is a low-profile backup sighting solution that is designed to be attached to the top rail of a rifle's handguard. When stowed in the folded position, the M4's sight base extends back to envelope the front sight leaf on the right and left side, helping to protect it from damage.