This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 90% - The bluing on this piece shows some fading and edge wear.
Metal - The overall condition of this piece is very good. There are some scratches throughout the piece and some minor tooling marks, but no other significant metal damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE