This is a Ruger Revolver: Double Action known as the Super Redhawk chambered in 454 Casull, model # 5517, UPC 736676055173
Model Series: Super Redhawk
Gun Type: Revolver: Double Action
Caliber: 454 Casull
Action: Double Action
Capacity: 6
Finish: Stainless Steel
Stock: Black Hogue Monogrip
Sights: Front: New Style Red Ramp Rear: Adj Square Notch
Barrel Length: 5
Overall Length: 10.5
Features: Incl Scope Rings/ Comes W/ Extra V-Notch Ft Sight