New Carbon Fiber Reflex Sight from Sightmark

The Ultra Shot M-Spec FMS (SM26015) is a special offering for Sightmark’s 10th year anniversary.

The Sightmark Ultra Shot M-Spec FMS Carbon Fiber uses the same design as other M-Spec models, but comes with a good looking carbon fiber protective hood. To be honest I think this is more for looks than for any substantial weight savings, but carbon fiber does both very well.

Below: I think it’s safe to say that most Sightmark M-Specs will sit on an AR-15 Picatinny rail, but shotguns and up to .50 caliber rifles are OK as well according to the manufacturer.

Below: The body is made out of magnesium and the cover from carbon fiber.

The M-Spec is Night vision compatible with 6 settings.

The battery life is stated at 90-1000 hours, which is quite a huge span. The battery is one single 3 volt CR2.

However, to conserve battery life the sight also uses an accelerometer which detects motion. If the sight is motionless for more than five minutes, the sight automatically shuts off.

The M-Spec features:

  • Carbon fiber protective hood
  • Parallax corrected lenses
  • Wide field of view
  • Lightweight
  • Scratch proof lenses
  • Interlok internal locking system
  • Variable reticle brightness with night vision modes
  • Digital switch brightness controls
  • Low power consumption
  • IP68 Waterproof rating – submergible to 40ft.
  • Cast magnesium alloy housing
  • Motion sensing auto-on feature
  • Advanced, true color anti-reflective lens coating improves low light and night vision performance
  • Fixed mount design fits weaver and Picatinny rails
  • Unlimited eye relief


Field of view: ft@100yd 105 feet or m@100m 35 meters.


The Elevation Range of Adjustment is 120 MOA.

The coating is called “AR red”. Not sure what that means in technical or optical terms, but it sounds cool. The window is made by glass.

The reticle brightness settings are Off,1 to 8 and for Night Vision NV1-NV6.


Below you can see the reticle, a 65 MOA Circle Dot Crosshair. In reality it’s a 60 MOA circle with a 5 MOA subtension, 2 MOA central dot.


You also get a neoprene cover and adjustment tools with your sight. The M-Spec Carbon Fiber is priced around 300 USD.



Eric B

Ex-Arctic Ranger. Competitive practical shooter and hunter with an European focus. Always ready to increase my collection of modern semi-automatic firearms, optics and sound suppressors. Owning the night would be nice too.


  • I have a basic Sightmark optic on a shotgun and I have to say, I’ve yet to destroy it. Usually I’m an optics snob of the first order (Despite my current love affair with Burris’ XTRII series of optics which managed to supplant a Nightforce for having better glass, FFP, and the type of reticle I wanted for about a grand less than either NF or other “big name” scopes), but the Sightmark is cheap, has been durable, and does what an EOTech does without the speckling issues of the projected sight image that I get from an EOtech with my eyes.

    Is it a “battle-ready optic”? I dunno, I doubt it’d survive some of the hairiest missions. But for the most part? For range guns or comp guns or guns used by your average joe who never gets above a 5 on the tactical operator scale? I wouldn’t discount them or dissuade them from using one of these over a much more expensive Eotech.

    Also, Sightmark at least answers their bloody phone when you call in for support, unlike Eotech which goes straight to voicemail and they never fscking call you back so you can get warranty service. Ahhem. I digress.

    • Juggernaut

      I have 3 QD Sightmarks and have never had a problem with any of them- for a $90 product they function very well.

    • UWOTM8

      I got one of their Wolverine dots and was really surprised by the quality and clarity of it. Those things are pretty underrated.

      • Smitty Werbenjagermanjensen

        I have one that is T1 mount compatable. I used an AMD CASV height mount for an absolute cowitness. It is rock solid for a budget optic. Ill take the wolverines over holosun as far as durability. Though i dont care for their “holo” sights.

  • Klaus

    Let’s face it carbon fiber does look cool but what doesn’t are those boogered up screws in a couple of the photos.

    • PK

      Yes, that was painful to see on promo photos.

      • bluecheesedressing

        Reminds me of the Colt Delta Elite 10mm promo shots on their website and ad that came out years ago that had an “idiot mark” on the pistol.

        • PK

          Not quite HK levels of backwards cartridges… but that hurts. Even technical issues aside, showing promo pictures with poor finish due to mistakes? That’s no way to sell anything!

    • Raptor Fred

      Attack of the phillips head screws again……..

      • Dougscamo

        Yep, how much more would it cost them to install Torx head screws (bolts)?

        • Raptor Fred

          For now, it has cost them any legitimacy .

          • Stan

            Sightmark was legit? When, why, how???

  • USMC03Vet

    Where is the wing though? Need some downforce for all that high speed low drag carbon fiber + 50whp.

    • Dan

      I live my life a 100yd rifle range at a time.

      • USMC03Vet

        Mia, I’m a cop.

  • Flounder

    I like it…

    BUT WTF!!!!
    WHY! Why are the screws stripped on all your press pics!?!?!

  • JC

    Yah, those Phillips made me cringe.

  • thedonn007

    $300 is too much. What is the battery life on these?

    • Stan

      Either 90 or 1000 hrs, which ever comes first