I have a few 21 round magazines and they have different base plates. Both mags are made in Italy, however one has a base plate that is more contured to the grip and thicker while the other is more squared and thinner. Which ones is the most current? Why the change?

Mag#1 like this one
https://www.sigsauer.com/store...gazine-extended.html
MAG#2 like this one
https://www.topgunsupply.com/s...tended-magazine.html

New question. Can the newer 17 round base plates and inserts be purchased or do I have to buy all new magazines? I a looking for the ones that work with the X-series grip modules.

I called Sig today. According to customer service they should start showing up on the web store soon.

This message has been edited. Last edited by: am94pm, April 02, 2018 04:57 PM

http://www.osagecountyguns.com...floor-plate-updates/
If you don't need them, you can usually find someone in the classifieds to trade your newer squared plates for their older oval ones.

quote:

Originally posted by am94pm:
I have a few 21 round magazines and they have different base plates. Both mags are made in Italy, however one has a base plate that is more contured to the grip and thicker while the other is more squared and thinner. Which ones is the most current? Why the change?

Mag#1 like this one
https://www.sigsauer.com/store...gazine-extended.html
MAG#2 like this one
https://www.topgunsupply.com/s...tended-magazine.html

Second one is newest. The top is tapered so they fit in the x5 magwells

Thanks guys. I believe I am settling on the X-Carry grip module for my 320. So I am fine with the newer magazine. I just wanted to make sure before I ordered more. I do not want to get the wrong ones.