New AR-15 Stock by Modular Driven Technologies

Modular Driven Technologies has introduced a new AR-15 stock called Skeleton Carbine Stock (SCS). The stock is designed to provide a wide range of adjustability options and at the same time be very lightweight. It is made of 6061 aluminum and has a Cerakote finish.


SCS stock features three QD swivel attachment points: one on either side and the third one is on the bottom portion. It is also possible to attach a Picatinny rail on the bottom for mounting a monopod. In order to make it as lightweight as possible, MDT has skeletonized it by removing the material where it is unnecessary. The result is a 1.5 lb stock.

The length of pull, as well as the butt plate height and angle, are adjustable.  The buffer tube comes with either a foam cover or with an adjustable cheek riser. The SCS stock also comes with its own custom buffer tube of different lengths and with a standard castle nut. The buffer tube has a scribe mark which allows the shooter to set the angle of the stock. The MDT SCS stock is available through the manufacturer’s website. The price varies depending on whether you choose the foam cover ($219.99) or the adjustable cheek piece ($249.99). There are also two color options – black and FDE.

Note the dovetail attachment of two pieces of the butt plate. I think it is a good method and should make it a very robust design.

Hrachya H

Being a lifelong firearms enthusiast, Hrachya always enjoys studying design, technology and history of guns and ammunition. His knowledge of Russian allows him to translate and make Russian/Soviet/Combloc small arms related information available for the English speaking audience.
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  • Drew Coleman

    That is actually pretty cool. That’d be nice to have on a precision type AR.

  • xebat

    Looks just like what you would expect to be on a designated marksman AR-10/15 that would be procured by the US Military.

  • Vhyrus

    Holy modern steampunk, Batman!

  • Bean Guy

    All the Magpul PRS with almost half of the weight. Considering how well regarded MDT is, I expect this to be pretty decent.

    • Jared Vynn

      The Luth AR MBA1 is a quarter pound lighter and at least $40 cheaper for the entire assembly.

      • b0x3r0ck

        Unlike the Luth MBA1 this is made from 6061 aluminum vs Super Strong Glass Filled Nylon. Ounces equal pounds and pounds equals pain in all but you also have to look at the type of long term use it may to see.

        • Jared Vynn

          Would love to see a torture test of the various precision stocks.

      • Bean Guy

        But this is cool looking!

  • Bradley

    I really want a ruger precision rifle stock for my ar, but apparently they refuse to sell them separately.

    • b0x3r0ck

      Have you checked eBay just did a quick search and found few sells.

  • steveday72

    Unless there’s an unidentified mechanism to slide the cheek-riser back then it will interfere with the charging handle. To me, the cheek-riser equipped model looks like it was designed for Remington 700 type rifles with a modern chassis (that can take an AR threaded buffer-tube type of stock).

    • steveday72

      Exactly as I suspected… Cheek-piece is for bolt-action rifles (and even then it gets in the way if you need to remove the bolt for any reason). The AR-15/AR-10 cannot use the adjustable cheek-piece (unless you have a side-charging upper)!

      Copied from their website:

      “Please note:
      To clean or inspect the bore of a bolt action rifle equipped with the adjustable SCS, you will need to loosen and rotate the cheek-piece carriage down and out of the way.

      For all AR-15/AR-10 applications, you must use the non-adjustable version of the SCS unless you have a side-charger handle.”

      • b0x3r0ck

        As long as it can fit on a SA58 I don’t see any problems with it?.

  • Keiichi


    I love the MDT HS3 chassis on my Tikka T3x, and their polymer magazines are excellent.

    I use a LuthAR MBA-3 on that rifle, and won’t likely replace it with this. If I had an AR-pattern rifle, though, and weight was a concern this would be a very enticing option.

  • jerry young

    Skeletonistic and very minimal at that but it looks like components just clamped to the buffer tube not a full stock, leaving the buffer tube exposed leaving it open to possible damage, one small ding could cause the buffer to jam, by the looks of it, it’s not all that adjustable in length compared to a six position stock, I think I’ll keep what I have.

    • Jared Vynn

      What do you have out of curiosity? I know for a precision stock I will currently go with Luth AR as I have had great experiences with their MBA 1.

      • jerry young

        I built both my AR’s and working on a third I use stocks I got from sportsman’s guide, I’m not all that satisfied but they are better than what I see here, and will get better ones later I’m looking at Magpul, my third I’m building as a replica to the M16A1