The seat belt cutter on my usmc spring assisted pocket knife is starting to rust on one side. Do you guys happen to know where I could get a new cutter blade for it. Fyi : I wasn't in the marine corps. I have family and friends that are or were in the marine corps and I am just showing my support for the corps. It's also the branch I would choose if we ever have another draft. That and / or the airforce (ac-130 gunner).