This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 90% - This piece has only very subtle edgewear, but a few notable scratches mostly inside the bow. See photos.
Metal - There are some light scratches to the sides of the guard, and deeper ones inside the bow.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE