This is a steel trigger guard from a Winchester Model 70 rifle that has been customized by narrowing the bow on both ends.
Bluing and Metal - Reblued - The fresh bluing shows no edgewear and is dark and even. There are no rubs, spots of thinning, dings, or scratches.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE