The P226 Navy was actually in production for a few years before the MK25 came along. The first Navy was like the NSW (no rail), but with a regular serial number. The second Navy had the SIG rail. The MK25 introduced the 1913 rail and UID sticker. I think it also introduced the chrome-lined bore, but I’m not sure. Timeline? As far as I know:

1. P226 NSW (no rail, NSW serial number)
2. P226 Navy (no rail, standard serial)
3. P226 Navy (SIG rail, standard serial)
4. P226 MK25

The #2 pistol is almost as rare as the NSW, because the rail frame came very shortly afterwards. I’ve only seen one once.

 

Thanks….
Regarding #3…. P226 Navy (SIG rail, standard serial): Frame made in Germany?
MK25 is 100% USA correct?

 

The "MK25" is military designation.

The Navy with the SIG rail was designated the "MK24".

The first SEAL P226 was just the folded slided P226.

 

Thanks.
Any idea what changed between MK24 and MK25? Just German frame versus US frame?

 

As noted above, the MK25 has the 1913 rail. German frame or not has nothing to do with it.

 

BTW, the two thousand NSW P226s, although made to the exact specs of the ones carried by the SEALs, were not made for the SEALs but to sell and raise funds for the Special Operations Warrior Foundation, with one of its missions being providing support and scholarships for the children of those special forces warriors who have given their lives for the country.

 

Good cause. They should have done more than 2000.

 

Fyi, I'm copying and pasting the following post that Modern Day Savage, our resident expert on various "Navy" models over the Green site, made.
-----------------------------------------------------------

"As I've typed up info for similar posts in the past, please excuse the cut and paste. Not knowing how much info you're looking for I've trimmed down some of the details.

The original SIG P226 Navy NSW model (P226-9-Navy) was released in 2004 as a limited run of 2000 no-rail guns.

After the original SIG P226-9-NAVY "NSW" model, the "Navy" model was added to the SIGARMS catalog and, over the years, have included various SIG Navy models that have changed in configurations and designators to include:

E26-9-NAVY (with a corresponding release of the contract over-runs). SOME of these were inadvertently released from SIGARMS with the original C.O.A.

E26R-9-NAVY (SIG proprietary accessory rail)

E26R-9-NSWG (SIG proprietary accessory rail)

E26R-9-NSWC (SIG proprietary accessory rail)

SIG MK 25 (1913 mil-spec picatinny rail)

SIG MK 25 OHT (1913 mil-spec picatinny rail)

Depending on how finely you want to split the hairs there have also been a number of special limited commercial releases, including the Trident.

The SIG "Navy" has, along with other SIG platforms & models, gone through a series of changes including rail, non-rail, phosphated internals- to non-phosphated internals- and back to phosphated internals, along with sight changes, mag changes, and even slide milling changes."

 

Also, I’ve heard the “MK24” name get thrown around a lot for the SIG-rail P226 Navy, but I’m pretty sure the actual MK24 the US Navy is the HK45C.

 

It's thrown around, because it's both. And, the P226 MK24 was first.

Why Navy SEALs are Over the Beloved Sig Sauer P226 Pistol

Here’s What You Need to Remember: While Sig Sauer has created an excellent alloy-framed double action/single action pistol in the Mk 25, the general move to a striker triggers and the affordability of the Glock probably has doomed the Mk 25 to be a piece only for collectors and civilian marksmen...

nationalinterest.org

 

Thanks for the info guys. Will post some photos after it arrives.

 

Anyone here own a 1st Generation Navy? The no rail, 2000 units produced version?

 

Lots of pics online of those with NSW serial numbers.

 

The P226 Navy pistols are among my favorite. I have seen the following models:

No Rail German frame NSW-prefix
No Rail German frame U-prefix(The least common I've seen)
Sig Rail Sigarms rollmark German frame U-prefix
Sig Rail Sig Sauer rollmark German frame U-prefix
Sig Rail Sig Sauer rollmark US frame UU-prefix.
MK-25 German frame(early models)
MK-25 US made frame

This doesn't include RX models, TB models or Desert Tan ones.

You also see variations in barrels, controls, etc. The very last Navy models had night sights, I've seen nickel plated locking blocks on the late models, I've seen some with blued controls and some with phosphated, early Navy guns had blued barrels, etc.

The three I have are represented of the models that were listed in this decades old post I dug up.

P226 Navy model - AR15.COM

There are three version of the Navy SEAL pistol. The differences are subtle in some regard.

1) NSW serialized P226 was a pistol we released that was identical to the one we build for the SEALs except for the "NSW" serial # prefix. The actual gun they get has a U serial # prefeix. The NSW pistols were also part of a fundraising effort on the part of SIGARMS to raise money for the Special Operations Warrior Foundation. We were able to raise $100,000 plus another $25,000 from the auction of serial # NSW0001. We estimate that SIGforum members accounted for 10% of the pistols purchased. This gun came with a Certificate of Authenticity which has the NSW serial # prefix already printed on the card. We printed extras.

2) Non rail P226 Navy with serial # prefix of U is the actual honest to God gun we have supplied the US Navy SEALs with for several years. No certificate was designed to go with this gun.

3) Railed P226 Navy with serial # prefix of U is the newer version of the SEAL pistol. Very few people know this because we have not really announced it but the Navy ordered about 1,000 P226 pistols with the rail to replace older guns in their armory. I believe they are only ordering railed P226 pistols from that first order to the present. No certificate was designed for this gun.

The original certificate has been placed in some of the pistol boxes that have U serial numbers. This was a mistake - and an obvious one I would think - but one that was made. Having a certificate that reads "NSW" on the serial # line when your gun has a "U" prefix is, well, pointless. The only thing that certificate would authenticate is the fact that somebody placed it in the box. I asked them to stop putting the wrong material in those boxes which they have done. Only the special run of NSW serialized pistols was supposed to have a certificate in it.

Hopefully this clears up the confusion. And don't worry, I am used to having my name spelled wrong. - ERHARDT"

Thanks to Erhardt SiGARMS Director of Marketing posted on SigForum"

I also have the MK25 to round out the three Navy pistols.

 

 

That’s a very nice trifecta.

 

Here are the real deals carried by the real SEALs. Images online and by SMG Lee.

 

Looks an assortment of different grips were used which would indicate that team members were authorized to make at least that as a change/modification.

 

Just curious, what is this?

 

^^^ Older tech RFID button according to those who served.

 

That's really weird looking.

 

I like the do it yourself piranha and checkered grips.

 

Just picked up my second generation Navy. she is unfired and still had original factory packing grease etc. She pairs up nicely with my MK25. All I need now is a 1st generation NSW to complete the trifecta.