Get the look and feel of the legendary HK416 used by the world's most elite fighting forces in a semi-automatic .22 LR rifle. HK partnered with Umarex of Germany to bring you the best most realistic HK branded rimfire rifles available. Whether you use it as sub-caliber trainer for hunting or competition make sure you get the only HK416 .22 LR rifle authorized by HK.HK416 .22 LR RIFLE FEATURES Aluminum receivers RIS-Rail Interface System M-LOKA(R) / Mil STD. 1913 Retractable stock Pistol Grip with storage compartment Adjustable flip up sights 90Adeg manual safety Functional dust cover Last round bolt hold open Threaded muzzle 1/2 x 28Specifications: Caliber: .22 LR Width: 2.6 in Height: 10.8 in Barrel Length: 16.1 in Weight (without magazine): 5.7 lbs Magazine Capacity: 20 Rear Sight Aperture Hight: 1.3 in Rear Sight Aperture Width: 2.1 in Front Sight Width: .07 in