Multi caliber "Storm"

[wpod]

I hope I'm posting this in the right place.
I saw a Beretta Storm for sale that was 9mm and .40sw.
I have the 9mm flavor. I can use a .40 barrel and slide on my frame?
Thanks in advance.

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[wpod]

And .40 cal magazines

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[jimmythebrain]

No, you will need a whole new upper. Slide and barrel unit. That would cost as much as new PX4 in the correct caliber.

[wpod]

Thank you. I can now stop spinning those wheels.

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[Spaceghost]

Something to keep in mind. It is generally possible to convert a pistol to shoot a smaller caliber and generally impossible to go up.