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