Hey guys. Just got a new Swamp Rat Chopweiler with a Spec Ops Navigator sheath. I saw some reviews on the spec ops 'combat master' sheaths that said they fit the Chopweiler well. The Navigator said it held the same dimensions as the combat master so I went with it because it was a bit cheaper. Turns out that the kydex insert doesn't fit the blade. I can only get the knife about half way in to the sheath/insert. I'd like to try and heat up the kydex and reform it. Any idea how much the kydex can/will expand? It seems it will need to loosen up quite a bit. Anyone have problems with fitting a chopweiler into spec ops sheath (navigator or combat master)? Any ideas on how to get this sheath to work would be greatly appreciated since I want to take the knife on a trip to AK in a couple of days and don't have time to return the sheath and get a different one (plus, the navigator is pretty cool).