It's not a tight squeeze, but it definitely doesn't rattle. The blade slips all the way to the handle. With the velcro latch at the top you're good to go in my opinion! I would think that the Mil Reg, with saber grind, will also fit in that thing.

BTW, that is a mighty nice cordura set-up too! Thanks for stocking them Big Dog! <img src="/ubbthreads/images/graemlins/bowdown.gif" alt="" />