Hi. Thanks for the warm welcome! I also have a Sig P320 M18 9mm (I am in California) and really like the ease of loading with the polymer followers. I just was not wanting to get stuck with the factory magazines as I hear they are a bit finicky to load and can cause early wear to the internals.
Excited that I just ordered my 1911 .45cal and I would like to buy a few extra magazines with the polymer followers. Does anyone know the exact type to purchase for this model? I understand that Wilson Combat sells quite a few but I don't want to buy the wrong kind. Thanks for any feedback!!!