Heckler & Koch G36, Semi-automatic Rifle, 22 LR, 16.1 Barrel, Black, Polymer Stock, Fixed Sights, 20 Rounds, 1 Magazine 81000994 For over half a century, Heckler & Koch has been a leading designer and manufacturer of small arms and light weapons for law enforcement and military forces worldwide. HK is also the maker of premier brand firearms for the sporting and commercial markets. Its reputation for quality, innovation, and safety make Heckler & Koch a recognized leader in the development of technologically advanced products.