I have an opportunity to purchase an AK type clone/variant marked Arsenal Company Bulgaria, SSR-99P. I have heard that the SSR-99 is a US assembled gun, with US parts allowing use of any high capacity magazines, not just those with US followers and floor plates. It has a welded on Russian style slanted muzzle brake. The P indicates that it included Polish parts from a grenade launching version. Anyone have any more info, or clarification of what I have heard about it? Thanks