This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 90% - The finish on this piece has almost no edgewear. There is a spot at the top of the bow with bluing loss due to excessive rubbing. There are also a few surface level scratches to the finish.
Metal - The metal is in excellent condition with no notable damage aside from a few scratches.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE