This is a Ruger Revolver: Single Action known as the Super Blackhawk chambered in 44M, model # KS458N-C, UPC 736676008148
Model Series: Super Blackhawk
Gun Type: Revolver: Single Action
Caliber: 44M
Action: Single Action
Capacity: 6
Finish: Stainless Steel
Stock: Rosewood Grips
Sights: Front: Ramp Rear: Adjustable
Barrel Length: 4.62
Overall Length: 10.5
Features: Unfluted Cylinder