Brand: Heckler & Koch Model: MP5 Pistol Type: Pistol: Semi-Auto Caliber: 22LR Finish: Matte Black Action: Semi-Automatic Stock: Pistol Grip with Storage Compartment Sight: Adjustable Flip-up Barrel Length: 8.5 Threaded Muzzle 1/2 X 28 Overall Length: 16.7 Weight: 4.5 lbs Capacity: 10+1 # of Mags: 1 Safety: Manual Receiver: Aluminum Features: Dust Cover, Last Round Bolt Hold Open; Rail Interface System M-LOK, Mil-STD 1913