Tinker,the knife is a Outdoor edge razor lite. Replacable blade model. Very handy and great on buff hide.
They also do a razor pro with a fixed gutting blade.
these are my go to knife now. Blades are cheap and easy to get.
they require a bit of cleaning as hair /meat gets caught in the replace blade slot.
pretty easy to clean. Heres a pic of the. razor pro, Piranta and mouse.
cheers Mick