This is a Heckler & Koch Pistol: Semi-Auto known as the HK416 chambered in 22LR, model # 81000403, UPC 642230257894
Model Series: HK416
Gun Type: Pistol: Semi-Auto
Caliber: 22LR
Action: Semi-Automatic
Capacity: 20+1
Finish: Matte Black
Stock: Pistol Grip with Storage Compartment
Sights: Adjustable Flip-up
Barrel Length: 8.5 Threaded Muzzle 1/2 X 28
Overall Length: 16.7
Features: Dust Cover/ Last Round Bolt Hold Open