There's no question about it being a "go" - it's just a plastic frame. The actual "firearm" is the FCU, which isn't included with this. Just need to import it like any other plastic furniture, buttstock, vertical foregrip, Magpul bits and pieces, etc.
It's good to have options for the 320, and this is a natural fit for something like a 320RX. Glad to see the "modularity" of the pistol taking off a bit!
Bradley