Benchmade just sent me a stainless and a black deep carry BM clip. I like the design a lot, and the price ($0.00) even more. The current black ones are painted rather than oxide, so they will flake over time. If that bothers you, a stainless finish may be the way to go. But if you asked Benchmade for both, I'm sure they will send it to you free
Benchmade clips generally use that same 3-hole pattern with a few exceptions (ex: balis, OTFs, real small pocket folders, etc.). The clips for the Grip will fit the Mini Reflex, as both use that primary 3-hole clip system. Note that Benchmade makes at least three different clips that use that three-hole pattern, in various different finishes (all are interchangeable.)
Also note that most aftermarket clip adds seem to mention either the Grip, 940, 710, and 707 lines as I guess they are most popular and get the most search hits...all of those knives use the same clip hole pattern (which will fit your Mini Reflex). However, some aftermarket clips, especially the lowride ones, will work on certain Benchmades better than others. For example, I have a larger aftermarket low ride clip on my 710 that if I put on my 707 would arc too high (sitting the knife too deep in the pocket relative to the knife size) and have a length that was too long (covering much of the knife, almost touching the AXIS bar, and making a contact point that feels awkward to me in the pocket.) I also have a smaller clip on my 707 with a smaller arc that would not sit the 710 low enough in my pocket, and the overall size of it looks goofily out of place on the larger 710.
Finally, not sure if these caught your eye or not but the carbon fiber clips look amazing in person but function poorly. They do not clip the knife tight enough to my pocket for me to feel comfortable using them. So for aftermarket clips, I have settled on titanium. There are some quality ti clips you can get on a certain website in auction format for under 10 bucks in many cases, and I think they are great quality for the money and own many of them.