Williams Rear Receiver Peep Sight Unknown Base Only (8)

Williams Rear Receiver Peep Sight Unknown Base Only "03"

Vintage Williams Rear Receiver Peep Sight Unknown Base Only No Screws (#4)

Williams Rear Receiver Peep Sight Unknown Base Only (6)

Vintage Williams Rear Receiver Peep Sight Unknown Base Only No Screws (#2)

Vintage Williams Rear Receiver Peep Sight JEMS Base Only

Vintage Williams Rear Receiver Peep Sight Unknown Base Only "L"

Vintage Williams Rear Receiver Peep Sight Unknown Base Only Modified