This is a Smith & Wesson Revolver: Double Action Only known as the 642 chambered in 38SP, model # 150972, UPC 022188145359
Model Series: 642
Gun Type: Revolver: Double Action Only
Caliber: 38SP
Action: Double Action Only
Capacity: 5
Finish: Satin Stainless Finish
Stock: Crimson Trace Laser Rubber Grips
Sights: Front: Serrated Ramp Rear: Notched
Barrel Length: 1.875
Overall Length: 6.3125
Features: Round Butt/ Internal Hammer/ Smooth Target Trigger