Heckler & Koch HK43
|Heckler & Koch HK43|
|Place of origin||West Germany|
|Manufacturer||Heckler & Koch|
|Produced||March 1974 - 1989|
|Variants||KA1, A2 and A3|
|Mass||8.4 pounds (3.8 kg) (empty magazine)|
|Length||36.2 inches (920 mm)|
|Barrel length||16.975 inches (431.165 mm)|
|Cartridge||5.56×45mm NATO, .223 Remington|
|Rate of fire||Semi-automatic|
|Feed system||5, 20, 25, 30 or 40-round double column, detachable box magazine|
|Sights||Protected post front, rotating diopter rear sight|
In the mid to late 1960s, Heckler & Koch developed the HK33, which was a scaled-down version of the Heckler & Koch G3, but chambered for 5.56×45mm NATO. The HK33 entered production in 1968. In 1974, a semi-automatic version of the HK33 was introduced by H&K and was designated the HK43. According to H&K’s numbering nomenclature, the “4” indicates that the weapon is a paramilitary rifle, and the “3” indicates that the caliber is 5.56 mm.
A HK43 version KA1 with a shorter 322 mm barrel was used in 1977 by the German RAF terrorist group to assassinate general attorney Siegfried Buback and two policemen. Verena Becker, another former RAF member, has also claimed Wisniewski was the killer.