I have two suggestions from Wilson:
http://www.wilsontactical.com/detail.aspx?ID=17
http://www.wilsontactical.com/detail.aspx?ID=13
Also, If you ever want a Spartan Blade, just register on our site and mention PS.com and/or your service and I will turn on a 10% discount for any purchase.
All the best in your search for the knife!