This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 90% - The original bluing is dark and even with no major wear. There are a few extremely light scratches or areas of thinning, and some tiny tool marks at the screw holes.
Metal - The metal is in excellent condition with no damage except for some tiny tool marks around the screw holes.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE