This Remington manufactured breech block screw is for the No. 4 single shot rolling block rimfire rifle and is in very good condition exhibiting a brown patina with light slot wear. (file photo)

Note: Remington No. 4 rolling block rimfire rifles with the following serial numbers have been observed with this part:

Solid Frame: 44993 (22) & 65346 (22).

Takedown Frame: 155639 (32), 158988 (32), 162817 (22) & 168955 (32).

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