This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 85% The bluing on this trigger guard shows minor bluing loss and the finish is slightly faded throughout the piece and the sides of the trigger guard.
Metal - The overall condition of this piece is very good. There are minor nicks throughout the piece but no notable scratches or other forms of metal damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE