Polak187,

If you are O.K. with 4 1/2 inch blade of VG-1 San Mai III®
check out Cold Steel's Master Hunter. The sheath has a velcro and button snap closure around the belt.

http://www.ltspecpro.com/fixed-blades-master-hunter.html

or look at this
http://www.knifeoutlet.com/shop/10Expand.asp?ProductCode=AL345

The second option will require a after market sheath.
Here are two liks for those:
I think this is the less expensive of the two
http://www.mnsi.net/~nbtnoel/products.htm

this one is probably more expensive
http://bladerigger.com/blades/

But am not sure about what either company charges.

Also as someone else mentioned the techlock could make this 2" knife fit the bill if you can find it for a better price.
http://www.benchmade.com/products/product_detail.aspx?model=210TK

Best of luck with your search.

Joe