This is a Heckler & Koch Pistol: Semi-Auto known as the P30 chambered in 9MM, model # 81000107, UPC 642230260504
Model Series: P30
Gun Type: Pistol: Semi-Auto
Caliber: 9MM
Action: Double Action
Capacity: 17+1
Finish: Blue Hostile Enviroment
Stock: Interchangeable Backstraps and Lateral Plates
Sights: 3 Dot/ Open Square-Notch Rear Sight
Barrel Length: 3. 86
Overall Length: 7. 18
Features: De-Cocking Button/ DA/SA Variant 3