I just won an ebay bid on a knife - it's a twosun ts68. M390 steel, TC4 titanium scales, under 2" blade. $72 delivered including gst. Apparently knives from this company have been tested by a youtuber for advertised M390 and D2 steel and titanium scales, and the steel has been as advertised. They also tested hardness which came back as 60 for the M390.