Description
The Sig Sauer P226 MK25 Navy is the commercial version of the pistol the US Navy adopted after putting it through a testing program most sidearms would not survive. MAG5 Firearms stocks it with the anchor engraved on the slide, a 4.4-inch barrel, an aluminum frame and a Picatinny rail.
What the Navy Testing Actually Demanded
The contract that produced this pistol required a gun that would run after immersion in salt water, sand and mud, and keep running through round counts that retire ordinary service pistols. SIG built the P226 to meet that, and the design has not needed rescuing since.
The Sig Sauer P226 MK25 Navy carries the same phosphated internal parts and corrosion-resistant treatments that the contract specified, rather than being a cosmetic tribute with a logo added.
Hammer-Fired Operation
A long double-action first press is hard to trip accidentally, and every shot after it breaks short and clean in single action. There is no manual safety to forget when things get fast.
The decocking lever drops the hammer safely without touching the trigger, so the Sig Sauer P226 MK25 Navy returns to the holster loaded but not cocked. That manual of arms is why this platform stayed in service so long.
Sig Sauer P226 MK25 Navy Specifications
| Manufacturer | SIG SAUER |
|---|---|
| Model | P226 MK25 |
| Part Number | MK2510 |
| Caliber | 9mm Luger |
| Capacity | 10+1 Rounds |
| Barrel Length | 4.4 inches |
| Barrel Material | Black Carbon Steel |
| Slide | Black Nitron Stainless, US Navy Anchor Engraved |
| Frame | Black Hardcoat Anodized Aluminum with Beavertail |
| Accessory Rail | Picatinny |
| Grips | Black Polymer |
| Action | Double Action / Single Action with Decocker |
| UPC | 798681439126 |

Sig Sauer P226 MK25 Navy Construction and Durability
A hardcoat anodized aluminum frame keeps weight sensible without polymer flex, and the Nitron-treated stainless slide resists the corrosion a pistol picks up from sweat, humidity and saltwater.
All-metal construction also soaks up recoil. A full-size 9mm this weight is genuinely easy to shoot well, which is why it remains a favorite for training classes and high-round-count practice.
Rail, Sights and Setup
A Picatinny rail under the dust cover takes a weapon light directly, which is standard equipment on a duty or home defense pistol and not an afterthought.
SIGLITE night sights come from the factory rather than as an upgrade, giving a tritium reference that works in darkness without a battery.
Magazines and Availability
P226 magazines have been produced for decades and are widely stocked, and higher-capacity versions are available where local law permits them.
MAG5 Firearms is a licensed FFL dealer in Pennsylvania. This pistol ships new in the factory case with magazines, lock and documentation, transferred through your local FFL.
Other Sig Sauer P226 MK25 Navy variants and full-size service pistols are listed in our handgun catalog. Factory specifications are published by SIG SAUER.
Every Sig Sauer P226 MK25 Navy sold by MAG5 Firearms ships new in the factory packaging with the accessories SIG SAUER includes, and transfers to your chosen FFL. The Sig Sauer P226 MK25 Navy is a regulated firearm and we verify licensing before any order leaves the shop.
Ownership Tips
Before your first range trip, read the owner’s manual and practice loading, unloading, and field-stripping with an empty gun. Clean and lightly lubricate the pistol after each session, paying attention to the slide rails, barrel hood, and breech face, and use quality gun oil sparingly. Inspect magazines for dirt and weak springs, and replace springs on a regular schedule if you carry the gun daily.
For carry or home defense, test the ammunition you plan to rely on with at least a few boxes to confirm reliable feeding. A quality holster that covers the trigger guard, a sturdy belt, and a weapon light round out a dependable setup. Check your state and local rules on magazine capacity and transport before ordering, and we will ship to the licensed dealer of your choice.








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