LUTH-AR Adjustable Carbine Stock (MBA-3)

LUTH-AR Adjustable Carbine Stock (MBA-3)

Product Code:
Calculated at Checkout
$159.95 $150.35



  • Adds up to 1" of height on the cheek rest, and an additional 1-1/16" length of pull
  • Includes a Picatinny Rail on the bottom rear of the stock
  • The Luth-AR MBA 3 Fits both Commercial and Mil-Spec carbine buffer tubes
  • Flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstock
  • Adjustable buttplate height


  • Material: Glass Filled Nylon
  • Finish: Black
  • Weight: 1.17 lb.
  • Length: 7.68" (8.75" fully extended )
  • Height: 5.13" (5.94" fully extended)
  • Width: 2.3"


  • AR-15 and AR-10 with Mil-Spec or commercial carbine buffer tube


  • 1x LUTH-AR MBA 3 Carbine Stock
  • 1x Check Riser (installed)
  • 1x Extendable Butt Plate Assembly (installed)
  • 1x Rubber Butt Pad (installed)


Luth-AR MBA-3



LUTH-AR’s newly-designed stock is specifically designed for AR carbines to allow the operator to have complete adjustability. This stock is designed to fit both commercial and Mil-Spec buffer tube assemblies. The Luth-AR MBA 3 will fit all .223s and most .308 AR-type rifles. You will be delighted with how easy it is to install this adjustable stock on your rifle.

LUTH-AR Stock: MBA-3

In today's world, finding a high-end product that you can actually use at a reasonable price is becoming a rare thing. The Luth-AR MBA-3 adjustable carbine stock is just such a creation. Weighing in at just over one pound, the Luth MBA-3 carbine buttstock performs nicely in three-gun competition while being sturdy enough to deliver precision, long-range reliability. Versatility, function, and durability are all hallmarks of the Luth-AR Stock MBA-3.

Buttstocks provide the main point of contact between you and your AR15. You will recognize a good buttstock by its recoil absorbency and its durability. The ideal buttstock will also be able to accommodate the many sizes of AR owners out there. The LUTH-AR MBA-3 adjustable stock meets these specifications perfectly.

LUTH-AR MBA-3 Carbine Buttstock Offers More Adjustability

Are you honestly happy with your current weapons buttstock? When it really comes down to it could your stock be just a bit longer, higher, or wider? Well, the Luth MBA-3 carbine buttstock delivers the versatility so you can make it happen to your gun. You can go the minimalist route if that really is what you want, or you can go with the Luth-AR MBA-3 and have it all.

The Luth-AR MBA-3 buttstock assembly adds up to one inch of height to the cheek rest along with an additional 1 1/6-inch length of pull. Made from glass-filled nylon for superior strength, the MBA-3 weighs approximately half the weight of competing products at a mere 18 ounces. An included picatinny rail on the bottom rear of the stock permits the user to attach the accessories of choice. To help decrease the rattle of collapsible carbine buttstocks, a flat bottom index set screw is included. This screw will also secure the stock in the position you desire.

The Luth-AR Stock MBA-3 is designed for shooters to be able to quickly and easily make adjustments. Some of Luth-ARs' competitors may have good intentions, but some of their stocks can get a little complicated. You know, you really shouldn't need an engineering degree to adjust your stock. When you install a Luth MBA-3 carbine buttstock the first thing you will notice is the austere beauty of a stock worthy of your AR. Next, will be the lack of aggravation when you start using the Luth-AR MBA-3. Delivering both weight savings and design genius, the Luth-AR Stock MBA-3 outperforms their competitors, some coming in at twice the price.

About Luth-AR:

LUTH-AR was founded by a man who has had more than 30 years of experience in the AR-15 industry. Randy E. Luth also founded D.P.M.S/Panther Arms, now one of the largest AR manufacturers in the world. Luth has also worked to promote hunting with AR-type rifles.

Write a Review

7 Reviews

  • MBA 3 stock adjustable

    Posted by Scot on 22nd Jun 2020

    Great addition to my AR it allows me exact check position and contact being fully adjustable. Great product and couldn't be happier has really helped my longer range shooting


    Posted by Jose Sugranes on 4th Jun 2020

    Looks very well made. Shipping was fast enough. Haven't use it yet, my ar15 is at the gunsmith doing some mods. But look and feel very strong. We'll see. I recommend it. Just on the looks.

  • Luth AR butt stock

    Posted by Richard on 6th May 2020

    Well made. Durable. Easy to operate very comfortable.

  • Luth-AR MBA-3 stock.

    Posted by Papo on 14th Jun 2019

    I installed the stock on an AK-47 M10, and it made a lot of difference when at the range. I wanted a stock capable to allow me to see through the sights without straining my neck, and this stock is it.
    Not perfect but it definitely makes the difference when at the range.
    I have not used it thoroughly, but it seems well made. I would like a better buttpad but it is good enough. The allen wrench that comes with it is a fine idea. I will see how long it takes me to lose it.
    Overall, I think it is a good product.

  • haven't used it

    Posted by Unknown on 3rd Dec 2016

    its probably pretty awesome. i put it on my ar to get my cheek weld higher so i can see properly through my optical. so far all that is working great. i haven't used it yet. looks like it will do the job. can't use the charging handle unless its on the 3rd notch on the extension.

  • Great for Precision Shooting

    Posted by Unknown on 13th Aug 2016

    It was easy to install and adjust to my shooting preferences. There are other AR 15 precision adjustable stocks out there. In my opinion, this one provides twice the capability for almost half the price.

  • Versatile, Well Made, But

    Posted by Unknown on 2nd Aug 2016

    The LUTH-AR MBA-3 is a very well made, easy to use stock and nearly infinitely adjustable for most if not all users. I've only used it once so far and was very pleased with its performance. It even comes with its own allen key to tighten down and remove any extraneous movement after adjustment for length of pull.

    The reason I gave it a 4 and not a 5 is because instead of designing the stock with universally sized QD swivel recess, the buyer is forced to buy a proprietary accessory plug/cup and swivel that then has to be installed into the oversized recess in the stock. I took a chance and bought just the plug/cup for $5.29 (shipping was almost the cost of the plug) and found that my swivel fit into the plug/cup just fine.

    I would definitely recommend the LUTR-AR MBA-3 for those who are looking of an adjustable stock to fit their particular situation. I hope they go back to the drawing board and redesign it so it uses universal swivels. Even better, include a couple of swivels with the purchase of the stock!

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