| M40A1 Unertl / USO MST-100 Parallax And Sighting Tool. $260 shipped This listing is for a parallax adjustment tool only, no scope or Allen wrenches are included. This tool works the same as the original but has 1 MOA division lines and 1/2 MOA hash marks in between the lines. The underside has 3 feet, that fit over your elevation and windage knobs hold it in place while you make sight adjustments. |
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