Gas cylinders (not "tubes" as in AR nomenclature) are stainless steel and prone to finish loss on a diligently cleaned GI rifle.
The flush nut rear sight, early design, looks a lot like the T105E1 postwar sight.
Gas cylinders (not "tubes" as in AR nomenclature) are stainless steel and prone to finish loss on a diligently cleaned GI rifle.
The flush nut rear sight, early design, looks a lot like the T105E1 postwar sight.