Light, compact, and designed for maximum maneuverability. The HK421 in Caliber mm x 51 NATO is designed to increase the soldiers capability from Open-Field engagements to Close-Quarters Battles. It combines machine gun firepower with the handling of an assault rifle. #hecklerundkochgermany #hecklerundkoch #hecklerandkoch #hecklerkoch #hk421
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