SIG Sauer P226 MK25 9mm Luger Navy Variant, DA/SA, 4.4 in Chrome-Lined Barrel, Nitron Slide, SIGLITE Night Sights, MIL-STD-1913 Rail
This SIG Sauer P226 MK25 is the Navy-designated variant associated with U.S. Naval Special Warfare, identified by its anchor-marked slide and corrosion-resistance package. It features phosphate-coated internals, a chrome-lined barrel, SIGLITE tritium night sights, and a true MIL-STD-1913 Picatinny rail. This example includes a SIG Sauer MK25 Certificate of Authenticity and a dated case label (25-JAN-2015) matching the pistol, with an Exeter, NH USA frame marking.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Rifling Condition: Excellent - Sharp lands and grooves.
Specific Condition Notes: There are small handling marks from prior use. See the photos for close-ups of the exterior surfaces and markings.
What's Included
- SIG SAUER factory hard case with MK25 labeling (dated case label 25-JAN-2015 matching the pistol)
- SIG SAUER P226 series owner's manual
- SIG SAUER MK25 Certificate of Authenticity
- 1x 15-round magazine and 1x 10-round magazine (P226 9mm steel magazines; bodies marked 'MADE IN USA')
The MK25 package adds corrosion resistance via phosphate-coated internal parts and a chrome-lined barrel, along with the distinctive anchor engraving on the Nitron-finished slide. These features, paired with black hard-coat anodizing on the aluminum-alloy frame, define the Navy variant’s robust specification.
Operation is DA/SA with a short-recoil, locked-breech system and a decocking lever, complemented by an external hammer. The full-size frame provides a 15+1 capacity and a three-slot, true MIL-STD-1913 Picatinny rail for duty-ready mounting options.
The 4.4 in chrome-lined barrel and SIGLITE 3-dot tritium night sights deliver a clean sight picture day or night. The front blade is tritium-marked '06', and the sight radius is approximately 6.3 in. Black textured polymer grip panels offer a sure hold.
Provenance details include a SIG Sauer MK25 Certificate of Authenticity and a dated factory case label (25-JAN-2015) that matches the pistol. The frame is marked Exeter, NH USA, aligning with the model’s U.S. production era and confirming the correct configuration.




