This is a standard steel trigger guard from a Winchester Model 70 rifle.
Bluing - 90% - The bluing shows minor signs of wear along the edges of the piece.
Metal - The overall condition of this piece is very good. There are some minor surface scratches in the finish and a few scuffs on the inside of the trigger guard, but no other significant marks of metal damage.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE