The Sig Sauer P320 Compact/Carry Replacement Barrel (brand part no. BBLMODC357) is a factory-spec .357 SIG barrel built to drop into the P320 Compact and P320 Carry frames without fitting or gunsmith work. Sig Sauer machines it to the same tolerances as the barrel the pistol shipped with, then finishes it in the brand’s black Nitron coating for corrosion resistance and a low-glare look that matches factory slides. At 3.90 inches, it matches the barrel length used across the P320 Compact/Carry line, so slide cycling and lockup stay consistent with the pistol’s factory geometry. It’s a straightforward option for P320 owners who need a factory-correct replacement barrel or are adding a .357 SIG chambering to a Compact or Carry frame they already own.

Key Specifications

• Chambered in .357 SIG.
• Barrel measures 3.90 inches.
• Fits the Sig Sauer P320 Compact and P320 Carry frames.
• Finished in Sig’s black Nitron coating for corrosion resistance.
• Sold as a genuine Sig Sauer factory replacement barrel, not an aftermarket part.

Frequently Asked Questions

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

Which Sig Sauer pistols does it fit? The P320 Compact and P320 Carry frames.

Buy the Sig Sauer P320 Compact/Carry Replacement Barrel

Get your P320 Compact or Carry 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.