With these Sig Sauer factory barrels, you can convert your 357 Sig to 40 S&W or your 40 S&W to 357 Sig. These barrels are made of blue chrome moly steel. If converting the P239, a new magazine will be required (sold separately). Other models require no magazine change.
MPN: bbl22640
Item# 41935-BBL22640
In stock
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