The HK SP89 (Acronym for Sport Pistole M1989, or specifically "Sporting Pistol, Model 1989") is marketed for sporting use as a semi-automatic, "civilian" version of the Heckler & Koch MP5K.
The SP89's inherent accuracy makes it an ideal choice for small game hunting and target shooting. This low recoil semi automatic pistol uses the proven delayed roller locked bolt system that is often found in many HK firearms.
The HK SP89 was banned specifically by its name from importation into the United States with the assault rifles ban by a presidential executive order in 1993. The weapon has additionally been further named in the Violent Crime Control and Law Enforcement Act of 1994 specifically as an "assault weapon". Although the latter act has now expired and that ban has been lifted, the presidential order is still in full force and effect and the weapon remains banned from import. The ban is somewhat of a moot point as the gun is no longer under current production. Existing models in the United States get a premium amount from collectors.