Did BCM discontinue their Short M-Lok Vertical Grip with the storage compartment? Been looking and cannot seem to find this one

Discontinued? They've never made that grip in M-LOK, only Picatinny and KeyMod. They do make the Mod 3 vertical grip in M-LOK, but that's the one that doesn't have a storage compartment.

I know this because I wanted the same vert grip as you for my BCM Recce-14 build (which has an MCMR-13 handguard), and that was when I discovered that an M-LOK version didn't exist. So I run the Picatinny version on my rifle, attached to my handguard with a section of low-profile Magpul aluminum Picatinny rail (5-slot version). That's the setup I'd recommend if you're like me and want the storage compartment grip.

Thank you for straightening me out on this! Could have sworn I saw the m-Lok version on their website! Get old sucks! lol.
Does the 5 slot give you a clean transition from the smooth m-lok rail or is there a ledge to contend with?

Nope, no edge whatsoever, which is why I chose that particular rail section. 5 slots is an exact match for the length of the grip.

Thank you! I’ll order this setup tomorrow!