This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 60% - The original bluing on this trigger guard is battered and worn. There is edgewear and fading, plus heavy scratches and rust spots. This piece belongs on a rifle with real battle scars.
Metal - The metal contains deep scratches and significant pitting.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE