SIG Sauer P226 MK25 – 9mm, 4.4", SIGLITE Night Sights, (3) 15rd Magazines (WMK25)
The P226 MK25 is the commercial counterpart to the pistol long associated with U.S. Navy SEAL sidearms: a full-size 9mm DA/SA P226 with a true M1913 Picatinny rail, SIGLITE night sights, anti-corrosion treatment on critical parts, and the distinctive anchor engraving on the slide. This listing is the WMK25 MK25 only — not a Legion, not an X-Five, and not a generic Nitron P226. SIG part number WMK25, UPC 798681439836.
This listing is for the P226 MK25 (WMK25) configuration only.
What Sets the MK25 Apart on a P226 Frame
SIG builds the MK25 around the familiar P226 ergonomics and then specs it for maritime duty use: phosphate-coated internal parts for corrosion resistance, a chrome-lined / corrosion-resistant barrel treatment depending on production lot notes in SIG literature, UID identification label on the frame, and the slide anchor mark. The rail is a full MIL-STD-1913 Picatinny section rather than SIG’s older proprietary rail profile.
Sights, Magazines, and Controls
- SIGLITE night sights front and rear.
- (3) 15-round steel magazines included on the standard catalog configuration.
- DA/SA hammer-fired action with a traditional decocker/safety lever arrangement for the P226 platform.
- Black polymer two-piece grips on an alloy frame with Nitron / hard-coat anodized black finish.
- 4.4-inch barrel, 7.7-inch overall length, about 34 ounces with magazine per SIG published weight.
SIG Sauer P226 MK25 Specifications
| Manufacturer | SIG Sauer |
| Model | P226 MK25 |
| Part Number | WMK25 |
| UPC | 798681439836 |
| Cartridge | 9mm Luger |
| Action | Semi-Automatic, DA/SA |
| Barrel Length | 4.4" |
| Capacity | 15+1 |
| Magazines Included | (3) 15rd steel |
| Frame Material | Alloy |
| Slide Finish | Nitron / hard coat black |
| Grips | Black polymer (two-piece) |
| Sights | SIGLITE night sights |
| Accessory Rail | MIL-STD-1913 Picatinny |
| Overall Length | 7.7" |
| Overall Height | 6.3" |
| Overall Width | 1.5" |
| Sight Radius | 5.5" |
| Weight | 34 oz (with magazine) |
| Notable Marks | Anchor engraving on slide; UID label |
Frequently Asked Questions
Is this the same pistol associated with Navy SEAL issue?
SIG markets the commercial MK25 as identical in configuration to the railed, anchor-marked P226 used as a SEAL sidearm. This is the civilian WMK25 SKU.
How many magazines ship with WMK25?
SIG’s catalog configuration lists three 15-round steel magazines.
Does it have a Picatinny rail?
Yes. The MK25 uses a true MIL-STD-1913 rail under the dust cover.
Is this an X-Five or Legion?
No. This listing is WMK25 P226 MK25 only.
Internal Reference:
WMK25
Barcode:
798681439836
| Brand: Sig Sauer |
| Model: MK-25, P226 |
| Caliber: 9mm |
| Capacity: 15 |
| Firearm Action: Semi-auto |
| Barrel Length: 4", 4" - 5" |
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This item cannot be shipped to the following locations due to legal or carrier restrictions:
Restriction Details
This product cannot be sold or shipped to your location due to magazine capacity restrictions. Magazine capacity cannot exceed 10rd. If you believe this to be incorrect or if you're exempt from the restriction, please contact us at 636-791-1655.
Affected States/Territories (10):
Restriction Details
Vermont restricts rifle magazine capacity to 10rd. This exceeds the state's restricted capacity. If you believe this is in error or if you are exempt from the restriction, please contact us at 636-791-1655.