This is a Ruger Revolver: Single Action known as the Super Blackhawk chambered in 44M, model # 0817, UPC 736676008179
Model Series: Super Blackhawk
Gun Type: Revolver: Single Action
Caliber: 44M
Action: Single Action
Capacity: 6
Finish: Stainless Steel
Stock: Black Laminate
Sights: Front: Ramp Rear: Adjustable
Barrel Length: 3.75
Overall Length: 9.63
Features: Unfluted Cylinder