Enfield #1 MK III Rear Sight Leaf w/Backsight, Early, Adjustable, *NOS*

Lee-Enfield #1 MKIII rear sight leaf with backsight, EARLY, windage adjustable, *New Old Stock*.

Sold individually.
This is the rear sight leaf with the backsight installed.
It has the thumbwheel on the right side to allow for windage adjustment.
This is a feature found on the earlier issue rifles and was discontinued as a wartime expediency.
NOTE: this rear sight requires the use of the rear sight protector with an offset on the right side to clear the windage knob.
Factory original *New Old Stock* part never installed on a rifle.
Because they were NOT removed from rifles, these will NOT have a serial number stamped on the back of the sight leaf.