Hi, I live in Dominican Republic and I have a SW-439.

I want to get an extended magazine for my gun. Could anybody help me or offer me any information?

I did a little research, it does not look like anyone makes an extended capacity magazine for the 39 series.
I do not know how hard it is to buy firearms in DR, but a 59 series would be what you should look for, if you can.
That, or just get a pile of stock 9 rounders and practice mag changes.

thank you Jeffytune.

To buy a firearm in my country is not easy but, I will try to get another magazine

I saw a 9 round mag for 39 series in a Internet store, I think that is my solution.

thanks for your help.

Someone use to make aftermarket 20 rd mags for the 39. When the 39 was our issued duty gun a few of the guys had 20 rd mags in their squads. I never saw one that worked 100% of the time.

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183rd FBINA

I purchased my 439 back in maybe '94. At that time, someone was making 15 rd magazines as well.