Keltec lists a 92 mag compatible version on it's website.
http://www.keltecweapons.com/our-guns/rifles/sub-2000/
"The 9mm SUB-2000 can be configured in the following magazine types: GLK17, GLK19, S&W59, BERETTA92, SIG226."
I have seriously considered it as i have the 92FS. But i understand...