This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 90% - The bluing on this trigger guard shows some signs of wear, mostly along the edges of the piece.
Metal - The overall condition of this piece is very good. There are multiple minor scratches and some spots of light pitting across the guard, as well as some tooling marks around the rear screw hole. There are no other significant marks of damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE