This is a vintage sight block for the front sight position on heavy barreled model 70 rifles which do not have a front sight dovetail. These blocks are designed to accommodate globe-style removable target sights such as the Lyman 77. They will not accommodate sights such as the Lyman 17 that require a dovetail slot in the barrel. Blocks are vintage used parts in very good to excellent condition. No screws are included.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE