There are 5 guards, 4 slots
It's a good thing I don't use the 102mm trim guards, as the case only has room for 4 of them (my Brio came with 5)
Brio Product Group
Hello, Gordon! Thanks for your review. I'm sorry about that! We actually just came out with that fifth guard last year due to popular demand, and we have not yet had a chance to redesign the Pro case (that will happen soon). In the meantime, there's a mesh pocket on the side of your case that can handle small stuff like an additional guard! Hope that helps, please don't hesitate to reach out to us at support@briopg.com if you have any questions.