Emerson blades swappable between standoff and backspaced versions??

[Kali_Commando]

Hello, I have done a search and can't seem to find an answer. I have an Emerson Commander 'standoff' version and am looking to get a second serrated version, mainly as just a beater.

I am able to find cheap used 'backspaced' versions on ebay and am wondering if the blades are swappable if ever I need to swap them out. Is this possible? or are there conflicts with tolerances??