This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 80% - The bluing on this trigger guard shows significant wear. The finish is faded and mottled throughout the piece, and the edges show some notable bluing loss. One side of the piece has had most of the bluing polished off.
Metal - The overall condition of this piece is very good. There are minor nicks, scratches, and light spots of pitting throughout the piece.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE