thats a hack?  dead center down from the tan Busse's?? I though the hack were really small 
They have different ones.  This one was an older one I believe. 
The little ones were "bear cub" hacks; I recall that Jerry calls those "railroad spikes".  I think they're more like a scalpel, and quite comfortable in my hand -- if they'd had Busse Combat rather than HACK on the blade, I think I'd have picked up at least one at the last Knob Creek.  However, they had SAR-5s for only slightly more, so I bought another of them instead.