This is a Ruger Pistol: Semi-Auto known as the Mark IV chambered in 22LR, model # 43933, UPC 736676439331
Model Series: Mark IV
Gun Type: Pistol: Semi-Auto
Caliber: 22LR
Action: Single Action
Capacity: 10+1
Finish: OD Green Anodized
Stock: Black Synthetic/ Gold Trigger
Sights: Front: Fixed Rear: Adjustable
Barrel Length: 4.40 Shroud Barrel
Overall Length: 8.40
Features: Magazine Disconnect/ Davidson's Exclusive