This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 98% - The bluing on this piece is nearly perfect, showing no significant signs of wear.
Metal - Overall, this piece is in excellent condition with no significant metal damage. The combined metal and bluing conditions make for an extremely attractive trigger guard.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE