The present disclosure provides for an armored sight level gauge field assembly for placement between fittings to show liquid level, including an elongated cylindrical transparent sight tube shield and a sight tube extending through the sight tube shield. First and second receiver plates define passages for the sight tube to extend therethrough, each receiver plate also sealing the shield. A U-shaped guard is removably connected to each receiver plate and provides a structural protective enclosure, substantially enclosing the sight tube shield. First and second connector plates attach to each receiver plate, and each connector plate defines an opening to receive ends of the sight tube for fluid communication between the sight tube and the fittings, each connector plate comprising a nozzle extending therefrom, opposite said opening, in coaxial alignment with the sight tube. Each nozzle is positionable between and removable from the spaced apart fittings.