The Heckler & Koch HK417 is a battle rifle designed and manufactured by Heckler & Koch in Germany
Heckler & Koch HK417 is a gas-operated,selective fire rifle with a rotating bolt. It's chambered for the full-power 7.62×51mm NATO round, instead of the less powerful5.56×45mm NATO intermediate cartridge. The HK417 is intended for use in roles where the greater penetrative power and range of the 7.62×51mm NATO round are required. It has been adopted for service by a number of armed forces, special forces, and police organizations.