WOLF Performance Ammunition is a trademark associated with Sporting Supplies International (SSI), a corporation founded in the United States in 2005.

Some of their 22-caliber rimfire ammunition are also made by Eley Limited in England.

Russia has been their largest source of 7.62×39mm ammunition, which is used by the Russian AK-47 and SKS family of rifles, as well as the Ruger Mini-30.

T91 uppers have also been exported to the United States through Wolf Ammunition|Wolf Performance Ammunition.

[1] When it was first released Wolf was reported to have sold more than a thousand uppers in one day.