I'd email and describe in detail what you think the issue is. Let them decide if they need to see it. They may offer to pick up the shipping, if not ask if they will provide a shipping label.
If not you may find that your local gun shop, especially if you have one you visit regular can ship it to Kahr cheaper than you can yourself. Downfall to that is it will be shipped back to the same shop and you'll have to wait for them to let you know it's back.
Shouldn't be any transfer fee or anything involved.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."