WHAT DOES BK7 MEAN?

lee I've a roland at90sl American typical with all the bells and whistles..if intrigued send me a pm..device was bought in 2011 from dealer new.Unquestionably really like the knife, hate the sheath. Give this wonderful knife a good challenging sheath! You can definitely count on this knife, but Ka-bar has to phase it up and make a good kydex sheath