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.357 to .40 conversion

  1. General Glocking
    I've been slow to get a Glock. Recently acquired a Model 32 in .357 Sig from a former LE. Discovering that ammunition is hard to find in my area, I've read that this model can fire .40 S&W. I'm wondering if a need a slide in 40 Cal or just a barrel from a Model 23?