It is M2 and it was only BM making knives out of it. However many moons ago they gave up being on the top and decide to be generic manufacturer making generic knife out of generic steel.
Many moons ago they were innovative giving us axis-lock and M2 steel, top design (710, Ares...) now nothing excited coming out of them, nothing innovative. I think it is one of this manufacturer which just keep what they can keep without too much effort and follow the flow... Same as Buck... Same as Camillus was... Good old company, making good old knives, and does not making any news - nothing interesting for me...
Thanks, Vassili.