the slr-95 was a t-hole variant. it lacked the lower buttstock tang. subsequent fitting of a military type buttstock requires the installation of the lower tang. the parts content with the t-hole was 100% bulgarian.
the sa-m7 is basically the same rifle, configured with military type furniture and the requisite number of usa made parts.
both rifle utilize parts manufactured by arsenal kazanlak in bulgaria. the slr-95 was assembled there and the sa-m7 is assembled in nevada.