I am aware Sig plans to sell these eventually; they predict shipping them as early as 4th quarter 2020. I need one now, in 9mm.

Anyone know of a US FFL / distributor with complete P320 FCUs in stock, ready to ship, right now?

AB Prototype used to offer stand-alone complete FCUs but they’ve replaced them with the upcoming official Sig version and aren’t shipping yet:

https://www.abprototype.com/sig-sauer-standalone-fcu/

They do have complete lower assemblies in stock that include the complete FCU plus a grip module:

https://www.abprototype.com/sig-p320-lower-half-x-carry-grip/

https://www.abprototype.com/sig-p320-lower-half-x-full-grip/

https://www.abprototype.com/sig-p320-lower-half-x5-grip/

You could either buy one of those complete lowers then turn around and sell the grip module that came with it, or I bet if you emailed them and asked they’d be willing to pull one of the complete FCUs out of one of the grip modules and just sell you that. I believe they got into an issue once Sig announced they’d be selling stand-alone FCUs and that AB Prototype had their stand-alone FCUs listed for less than Sig’s MAP (as shown here: https://www.instagram.com/p/CDwI5dupKQ5/?igshid=1ivdp6xgdyqj8).

Other than that they sometimes pop up on Gunbroker (I bought one from a seller there a few years back). This is the only one currently listed as available for sale:

https://www.gunbroker.com/item/878669207

Fantastic reply - thanks!

I will pass this on to my friend who is ready to buy.

Happy to help!

Damn. Or you can spend $100 more and get a complete X series gun. The magazines almost make up the difference and you're getting a slide, barrel, recoil assembly for free.

I think Proven arms had complete full size for $475 this week.  Sell the complete upper for 325 and get a magazine fcu grip module for 150.

With the prices they are showing for the FCU. I expect a lot more people will just continue stripping the guns apart and selling the pieces.