This is a new hard to find dust cover (also called mortise cover) This is a top quality machined part specifically ORIGINAL Winchester model 1876. It has the finger grooves milled into the sides. It fits the 2nd and 3rd models (serial number 3,000-25,250 for 2nd model and 25,250 to Forearm of production) that has the rail attached to the top of the receiver with 2 screws. You will need the dust cover stop (wp608-a) and dust cover stop screw (wp617-a). The dust cover spring (wp610-a) sits in the rail and puts tension on the dust cover when it is pulled back to keep it from falling forward.
