I knew it was one of the Dakotas. I heard that the company was still in business, though.
https://www.hsprecision.com/shop2/
http://www.ar15.com/forums/t_1_5/795021_3rd_HS_Precision_thread__Lon_Horiuchi_endorsement__Weak_HS_RESPONSE_andamp__Remingtonandapos_s_response.html