Walther P99. Can I use 9mm mags for .357SIG?
I have several P99 mags for 9mm P99. I am wondering if they can be used for .40SW or 357SIG ?
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God Bless USA!
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I do not think they will work, I was just talking to a friend at the range and he said that his mag would not feed the .40 round. The lips are too narrow. 0 -
The .357 SIG is based on the .40S&W case, so a .40S&W magazine is needed. 0
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