Actual Items Pictured
Conditions as Shown.
Only includes parts shown.
This is the sight commonly used on the Mk21 Navy and M39 Army AA mounts. Ref "The Browning Machine Gun" (Goldsmith) pg. 244
On the rear the glass shades and rubber eyecup are missing. This attaches to the top plate of a 50 BMG (including the M2HB) with 1/4-28 screws.
On the front sight the tension knob for the speed ring is broken (see pics). The front mount will also fit a standard M2HB around the barrel support. The mounting screw for bottom is not included.
The AA ring has some bends (see pics)