I guess that depends on the sheath. I have a sheath that came with a throwaway survival knife someone gave me, fits my Dereg perfectly, and I mean PERFECTLY. It probably cost 2 Dollars to make, but it makes a nice low profile sheath when I don't want to hump the Yard sheath.

Spec-ops Brand makes a fairly decent (I hear) sheath that accomodates up to 8" Blades, should work fine, comes in ACU and Coyote Tan.

Comes with a Kydex liner as well, which can easily be reheated and pressed to your blade specifically.