Anybody have a source where these magazines can be ordered. Apparently, none of the places I have tried have them in stock.

looks like most venders have had them on sale and people are stocking up.. I know I did. May have to wait a while for the the supply toi catch up.

My local shop had 3 on the shelf today and the Gander Mountain near me had a couple yesterday.
Local shop is Highsmith Guns 317-462-6276. I think they where $44 each.

A place in Florida called Shoot Straight has them.
I found them on a search for a 320 9mm 21 round magazine. They shipped it the day after I ordered.
The website shows over a hundred 15 round mags in stock for $35.

https://shoot-straight.com/pro...ompact-9mm-magazine/

Did you try calling SIG directly? I just got a bunch of stuff for my 320 directly from them. I got 10% off for ordering 3 mags.

It looks like Quantico Tactical has them:

http://quanticotactical.com/as...CatNum=36&CMN=Pistol

Sig has them for $44, shipping is free if you spend $100. Ammunition Depot has them for $34 with about 20 in stock.

Keep checking with CDNN periodically.

Best price I've found on the net is Ammunition Depot (and I give them a thumbs up for all 3 of my transactions with them).

$33.97 each they show 21 in stock.

https://www.ammunitiondepot.co...ompact-magazine.html

Try the SIG Academy pro shop

I got mine from our friend at Top Gun Supply before they ran out.

Sig has them. Ordered 6 this morning. Thanks for all your help!