Quick Attach Mount for MRO

Alamo Four Star MRO Mount

Alamo Four Star announced the production of a new quick attach riser mount for the recently introduced Trijicon MRO optic. The new mount is 1.544” tall, allowing for a lower one third co-witness. The unit is made of aluminum and weighs approximately two ounces.

“What makes this DLOC-MRO special is it is a ‘Return to Zero’ optic mount with 3 recoil lugs,” said Alamo Four Star CEO Mark Deros. “The DLOC-MRO requires no tools to rapidly attach to the firearm and will fit all mil-spec and non standard Picatinny rails.”

The mount has a manufacturer’s suggested retail price of $119.

Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is http://www.gunsholstersandgear.com/.


  • G0rdon_Fr33man

    Why co-witness an indestructible (kinda) optic? It just messes with you field of view..

    • Andrew

      Gotta love people who spend $600-$2600 on a military grade optic, but then waste money/weight/space on BUIS…”in case their primary optic takes a direct hit and is rendered inoperable.” If that ever happens, BUUP (backup underpants) would’ve been a wiser investment.

      • Giolli Joker

        Think more along the lines of: if I trip and my whole 300+ pounds will push the optic against a rock…

        • Drambus

          Basically this.

          The last thing I want is a hunt that’s over because I goofed and fell on my rifle or dropped it. Also, while I very rarely see scopes fail unless they’re cheap. I do, however, see scope mounts fail all the time. Lets just say I have a lot of “cheap” things sitting in a box somewhere to remind me just how expensive cheap can be. I’d rather just buy something once. If that means “military grade” then so what?

          I’ll keep my backups in case the mount fails.

      • G0rdon_Fr33man


      • andrey kireev

        I dunno… maybe because glass is glass and glass (and aluminum and steel and plymer) happens to break when hit by shrapnel, rocks or driven over with a vehicle ? Would that make sense ? Because it does to me

      • Joshua

        I’ve seen plenty of broken optics in the Military. M68s, SU-231S, M150s, you name it I’ve seen it broken.

      • KestrelBike

        ^^^ Obviously not operater enough to consider the effects of an EMP blast disabling the red-dot until a soldering kit can be unpacked to fix the circuitry.

      • Kivaari

        I bet you could find quite a few images of optics taking a hit. Saving the warrior, or making the owie less severe.

      • Mc Cain

        Because in the real world…stuff happens, at precisely the wrong time. Prepare for the worst..hope for the best. If you need your BUIS you need them, immediately, not ten seconds from now.

        If you are only using your rifle for fun at the square range, sure, it doesn’t matter.

    • Sianmink

      Where else are you going to put it?
      Though personally I prefer full co-witness, I don’t like my optic sticking up so high I have to shift my cheek weld.

      • G0rdon_Fr33man

        Right, but I mean why have iron sights at all in this day and age? Especially with optics that use tritium or solar? I mean, my army issued 416 doesn´t even have them (Comp m4).

        • Sianmink

          It’s a valid question. Today we have optics, like the MRO and T-1 that are quite possibly more reliable and robust than many flip-up BUIS and even some fixed sights. The cost and weight of a set of BUIS though is all but negligible though, so why not have them unless you’re trying to shave every ounce? Say your rifle takes a bad fall, your optic or mount may get out of whack. What kind of catastrophe must a rifle suffer that both the optic and irons are unuseable?

          • G0rdon_Fr33man

            I think whatever busts a T1 or similar optic out of whack, will also cause the iron sights (often mounted on the handguard) to at least get severely off zero, so you end up back to square one. I mean, it seems like a whole lot of these youtubers expect a 15 hour Taliban standoff with the gear they are rocking, and invent outrageously unlikely situations, and spend money thereafter.

          • andrey kireev

            A piece of shrapnel/ high speed rock hitting an optic would knock it out… All of M4s in my armory (both Army and Air Force) have BUIS. There’s always Murphy’s law and you don’t ever want to put all of your eggs in one basket.

          • Kivaari

            It’s all about the money on the US civilian market. I know I spend way too much on premium gear. Considering I am way too old and infirm to do much combat, urban or sandbox types, it still gives satisfaction from owning the best gear.

        • HSR47

          BUIS can be an important addition to a firearm for a variety of reasons, but often not the same reasons many people cite: For the most part, any physical event that is significant enough to kill a quality optic is almost certainly going to effect the zero of iron sights (if it doesn’t damage/destroy them outright).

          On the other hand, there are a number of situations where having iron sights is a good idea: illuminated optics tend to rely on either batteries, or collecting ambient light. When batteries die or ambient light is too high, these optics can become effectively worthless. Inclement weather can also make it difficult to use optics — while quality optics typically won’t be damaged by such exposure, moisture collection on the lenses can render them temporarily useless. In such situations it’s a good idea to have an alternative way to sight the firearm.

          On handguns with optics, BUIS can be a convenient reference point to use when finding the dot.

    • nobody

      I would love for someone to actually test different BUIS and optics side by side, as I’ve heard of test of the Primary Arms micro red dot where they grabbed the gun it was mounted on by the barrel just repeated beat the thing against a tree or shot it with a shotgun and even hit one of the lenses yet it still worked and supposedly retained zero, while at the same time I’ve seen tests that showed popular aluminum BUIS getting damaged from a short drop and landing on top of the rear sight and have yet to see Magpul’s MBUS sights get shot with a shotgun.

  • nova3930

    Are their marketing people still calling that I-beam a “dog bone”?

    • Edeco

      Heh, that would be an unfortunate choice of words to me, because you know, the samples in fatigue tests that are supposed to break are called that

  • Sam

    Why does everything have to be quick attach/detach? It honestly confuses me.

    • Kivaari

      So you can get your BUIS going in a pinch. Not a pinch of reality, but just in case reality bites you in the butt.

    • Mc Cain

      Some of us prefer to mount our optics further down the rail system, sometimes over the point at which the upper and lower separate. A QD is a great way to use it this way.

  • Kivaari

    I’d like to see one for use on carry handles. Since fixed carry handles seem to be disappearing, it has been harder as time goes by to find. Sure one can put short rails on the handle, then add a sight or scope that sits, this has to be true, about a foot too high. A small 1X optic red-green dot or better yet a black reticle for when the batteries go dead. You know, like just about anytime you really need the glowing dot.

  • Mc Cain

    ADM just released a line of QD mounts for the MRO, just FYI.