The Chinese made Buck 301 with the vertical pointing arrow after the 301 model number was manufactured in 2008. It has brass liners. Whereas, those manufactured in 2009 and later have horizontal pointing arrows after the 301 model number. Those have stainless liners. My question is, does the 2008 and 2009 and later models have the same steel 420J2 or does the 2008 model have 420HC?