This is a great piece. I just picked up the new Dark Sun 4e book and have been going thru to familiarize myself with the new 4e Athas. I love the Bow and arrow, really feels like Dark Sun weapons. and apparently this Templar is really well of since he's got some nice metal armor pieces. Or is it really nicely crafted chitinous armor. Either way, very nice work.
If the arrowhead is more of a tiny blade, with a sharp edge and point at the tip, it might still work as it should...or maybe it's a special purpose arrow of some sort...we may never know, and that's part of the fun