First Look: Sig Sauer P226 MK25-RX

This is a first look at the Sig Sauer P226 MK25 RX

That name is quite a mouthful. To break it down Sig essentially took the legendary MK25 that is used by the Navy Seals and released it for civilian purchase. In addition to that they included it in their RX line of Romeo1 equipped handguns.


  • MSRP: $1440.00
  • Price Paid: $1199.00
  • Caliber: 9mm
  • Action Type: DA/SA
  • Trigger Pull: 10 lbs / 4.4 lbs
  • Overall Length: 7.7 in
  • Overall Height: 5.5 in
  • Overall Width: 1.5 in
  • Barrel Length: 4.4 in
  • Sight Radius: 5.7 in
  • Weight w/Mag: 34.4 oz
  • Mag Capacity: 15 Rounds
  • Sights: SIGLITEĀ® Night Sights
  • Grips: Black Polymer
  • Frame Finish: Aluminum Hard Anodize & CerakoteĀ® FDE
  • Slide Finish: FDE
  • Accessory Rail: Yes
  • Features: ROMEO1 Red Dot Sight, Aluminum Hard Anodize & Cerakote FDE, (3) 15rd Steel Magazines

The Decision

I will be the first to admit that I had some hesitations about buying a gun with an optic from a company who really just started making reflex sights in the last few years. I had also read a few reviews online by folks who had purchased this and other similar firearms with the Romeo1 attached that were having reliability issues with the red dot appearing consistently or at all!

Why Did I Buy?

So you may be asking yourself why I purchased it anyway. The answer? I really wanted it! Also the price was only slightly higher than the standard MK25 plus buying a comparable optic and having the slide milled would have put me up around $1600 all in. I am in the process of building a new AR15 (First Look: Palmetto State Armory Build – Coming Soon) so I had to save where I could. Not to mention the fact that Sig guarantees the performance of the optic so even if it hadn’t worked perfectly I could get it replaced and I’d still come out on top. Consider the dice rolled!

The Result

So far so good. Anticlimactic I know, but I have only put about 500 rounds downrange and I only just start trusting something at 1000. The 500 rounds I have put downrange have been flawless so far. I have used a anywhere from 115gr to 147gr ammunition (including reloads) from Freedom Munitions, Federal, and Blazer Brass. The accuracy has been excellent as well producing 1-3 inch 5-shot groups at 30-75 feet (when I don’t screw up). Aside from the Double-Action first trigger pull (which is 10lbs BTW) the remainder of the squeezes are nothing short of light, crisp and exquisite. The true co-witness with the suppressor height sights is great in case of optic failure and the SigLite night sights are as good as any OEM night sights. I’ll post an update once I cross the 1000 round mark but so far so good.

First Look Ratings

Reliability: *****/5

Performance: *****/5

Appearance: *****/5

Price: ****/5

Overall: 4.75/5


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