This is a Ruger Revolver: Double Action known as the GP100 chambered in 22LR, model # 1757, UPC 736676017577
Model Series: GP100
Gun Type: Revolver: Double Action
Caliber: 22LR
Action: Double Action
Capacity: 10
Finish: Stainless Steel
Stock: Cushioned Rubber w/ Hardwood Insert
Sights: Front: Fiber Optic Rear: Adjustable
Barrel Length: 5.50
Overall Length: 11.30
Features: 5.50 Half-Lug Contour Barrel