He's got the war club and shield from a Saurian which was a free give away model from Banbury GW a while ago.  Those feathers are a plant from someone's scenic base.  And the Crusader helm with the eye peice is resin, so it's an aftermarket peice from somewhere.  The backpack is a white metal pig iron item.

 ...And all becuase if anywhere needs random heavily armoured people of unknown disposition with power weapons and shields, it's Devos IV.