This is a featherweight aluminum trigger guard from a Winchester Model 70 rifle.
Bluing - 95% - This is a very nice part, in a matte-black finish. There are small tool marks around the rear screw, but the remainder of the bluing is in excellent condition, with the slightest of light scratches and essentially no edge wear.
Metal - No metal defects on this piece.
We use the NRA Modern Gun Condition Standards Grading System for grading part conditions. You can read about it HERE