I've heard that if you get a glock in .40 or .357 sig then you can convert it to 9mm with a barrel and mag swap. Do other guns, like the M&P, have this capability available? Are the .40 and .357 sig mags the same mags?
I'm also looking into a revolver, specifically the S&W 686 plus, and am wondering if you can switch barrels on a 686 to change barrel length.
I'm also looking into a revolver, specifically the S&W 686 plus, and am wondering if you can switch barrels on a 686 to change barrel length.
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