The Sig Sauer P226 MK25 Factory Replacement Barrel (Sig Sauer part no. BBL-MK25) is a genuine factory-spec barrel built to drop into a P226 MK25 chambered in 9mm. Cut to 4.4 inches, it’s chrome-lined for corrosion resistance and easier cleaning, then finished in a durable phosphate coating and heat-treated for long-term toughness. Because it’s Sig’s own factory replacement part, it carries the exact dimensions and finish of the barrel the P226 MK25 shipped with, so fit and function match the original. It’s the right choice for MK25 owners replacing a worn or damaged barrel without introducing an aftermarket unknown into a duty or carry pistol.

Key Specifications

• Chambered in 9mm.
• Cut to 4.4 inches, matching the factory P226 MK25 barrel length.
• Chrome-lined bore for corrosion resistance and easier cleaning.
• Finished in a durable phosphate coating.
• Heat-treated for added toughness and durability.
• Built as a genuine factory replacement part, not an aftermarket reproduction.
• Designed specifically for the Sig Sauer P226 MK25.

Frequently Asked Questions

Will this barrel fit any P226? It’s built as a factory replacement specifically for the P226 MK25; confirm your model before ordering if you have a different P226 variant.

What’s the benefit of a chrome-lined bore? Chrome lining resists corrosion and makes the bore easier to clean, which matters on a duty or carry pistol that sees regular use.

Buy the Sig Sauer P226 MK25 Factory Replacement Barrel

Order this Sig Sauer factory barrel from our handgun barrels selection and restore your P226 MK25 to factory spec. Ships fast from our Lubbock, Texas gun shop.