HK project in 1989 in 5.7 x 22 mm GIAT
This seems to have been the conventional counterpart of the HK NBW - it used the later abandoned 5.7x22 mm calibre by GIAT. That was a new cartridge resembling a 7.62 x 22 mm Luger round necked down to .22 caliber. But this calibre was abandoned when GIAT became parent company of FN and FN had both a more powerful PDW calibre with its 5.7 x 28mm as well as more mature weapon designs for it. The front sight of this weapon confuses me; it doesn’t seem to be designed for greater than pistol ranges - otherwise its radius could easily be enlarged by a more forward fore sight. This project/study is dead now and I’m even not sure whether there was ever a prototype. Note that the “5.7 x 22 mm” calibre info could be wrong because GIAT’s own PDW project of the time was according to Jane’s in 5.7 x 25 mm. This gun borders on the SCHV category.