This is a Ruger Revolver: Double Action known as the GP100 chambered in 357, model # 1755, UPC 736676017553
Model Series: GP100
Gun Type: Revolver: Double Action
Caliber: 357
Action: Double Action
Capacity: 6
Finish: Satin Stainless
Stock: Custom Hogue Stippled Hardwood Grips
Sights: Front: Fiber Optic Rear: Adjustable
Barrel Length: 4.2
Overall Length: 9.5
Features: Slab-Sided/ Half-Lug Barrel/ Contoured Cylinder