This is a vintage (original) Remington model 12 action bar for the straight-style carrier dog (will not work with the "L" shaped carrier dog) in .22 short, long, and long rifle calibers (not .22 Remington Special!). P/N 201. These parts are used vintage and show it. Storage rust may be present or minor imperfections. They are functional and will work as they should with the installation by a competent gunsmith.