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P30L 40 S&W to 9mm conversion barrel

3607 Views 8 Replies 8 Participants Last post by  LemurMan
Just curious to know if anyone owns a .40 to 9mm conversion barrel? If so, how's the reliability? Do you need to use 9mm maggs? Any other mods necessary in order to accomplish this conversion? Thank you
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The mags are almost exactly the same. The only difference is the width of the feedlips. With the 40 being slightly wider for the larger shell, and the difference in markings on the witness windows.
9mm will feed reliably from the factory 40 mags. :)
Other than the barrel, there is no need for further mods. They even use the same recoil spring.
Also the same if you want to get and can find, a 357 sig barrel, I might add. ;)
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