The Sig Sauer P320/P250 Full-Size Replacement Barrel (brand part no. BBLMODF357) is a factory .357 SIG barrel built for the P320 Full-Size and P250 Full-Size frames. Sig Sauer specially heat-treats its factory replacement pistol barrels for toughness and durability, then finishes this one in the brand’s black Nitron coating to match the corrosion resistance and look of the barrel the pistol shipped with. At 4.70 inches, it holds the same overall length as the factory Full-Size barrel, keeping slide cycling and point of impact consistent with the rest of the pistol’s factory geometry. It’s a clean option for Full-Size P320 or P250 owners who need a factory-correct replacement or are adding a .357 SIG chambering to a frame they already own.

Key Specifications

• Chambered in .357 SIG.
• Barrel measures 4.70 inches.
• Fits the Sig Sauer P320 Full-Size and P250 Full-Size frames.
• Finished in Sig’s black Nitron coating for corrosion resistance.
• Specially heat-treated for toughness and durability.

Frequently Asked Questions

What caliber is this barrel chambered in? .357 SIG.

Which Sig Sauer pistols does it fit? The P320 Full-Size and P250 Full-Size frames.

Buy the Sig Sauer P320/P250 Full-Size Replacement Barrel

Get your Full-Size P320 or P250 back to factory spec, or add a .357 SIG option to a frame you already own. Order it from our Sig Sauer lineup, part of our handgun barrels selection, at our Lubbock, Texas gun shop for fast, direct shipping.