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Luth-AR MBA-3 Modular Stock for Mil-Spec or Commercial AR-15 Buffer Tubes

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Backed by the Luth-AR Warranty!
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Fully Adjustable AR-15 Buttstock for Mil-Spec or Commercial Buffer Tubes

The MBA-3 Buttstock replaces the standard stock on your AR, with complete adjustment for cheek weld, length of pull, and features a 3-axis buttplate. This stock fits onto carbine buffer tubes, whether using the mil-spec or commercial diameter – meaning it fits on basically any AR rifle with a six position tube. This stock is also rattle free, with adjustable tension on top of getting perfect alignment with your optics.

If you’re starting a new build, be sure to pick up a mil-spec buffer tube kit with everything your recoil system needs!

Features

  • Fully Adjustable Carbine Buttstock assembly to mount to a carbine rifle (6-positions mil-spec or commercial tube) – This is our carbine stock
  • The MBA-3 requires a Carbine buffer tube, either Mil-Spec or Commercial. Please review the information provided in the Requirements tab. This stock works with both carbine Commercial and Mil-Spec tubes/assemblies.
  • Additional 1″ height on cheek rest
  • 3-axis Adjustable Butt Plate Assembly extends additional 1 1/16″ length of pull and includes the following movement:
    1. Horizontal for linear adjustment (i.e. length of pull)
    2. Vertical for a perfect butt plate fit into the curvature of the shoulder.
    3. Lateral adjustment for a ½ inch left or right cast
    4. This butt plate assembly is interchangeable with the original MBA-1 Buttstock
  • Includes a Picatinny Rail on the bottom rear of the Stock Body to attach your choice of many accessories.
  • Designed a flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstock. This also allows you to secure the stock in your favorite position.
  • The MBA-3 comes with a  medium soft rubber recoil pad, Duro 85.
  • The Luth-AR MBA-3 weighs roughly half that of comparable stocks coming in at just 18.5 ounces.
  • Fits all .223 and .308 AR carbine style rifles
  • Super Strong Glass Filled Nylon
  • Easy to replace and quick to install
  • Uses 4 out of the 6 positions on a mil-spec or commercial tube

Specifications

  • Fit: AR-15 Mil-Spec or Commercial Buffer Tubes
  • Material: Glass Filled Nylon
  • Weight: 19.2 oz
  • Cheek Rise: 1″ Fully Extended
  • Collapsed Length-of-Pull: 11 11/16″
  • Extended Length-of-Pull: 15 5/8″
  • Additional Length-of-Pull: 1 1/16″

Products available on this page:

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Luth-AR Limited Warranty

  • Luth-AR, LLC manufactured products are warranted for 1 (one) year from the date of purchase against manufacturing defects in material and/or workmanship. All parts and labor or replacement, at our option, are covered.
  • Government fees, damage caused by failure to perform normal maintenance, sales outside the United States, damage due to high velocity, high pressure, reloaded, or other non-standard ammunition, or any unauthorized repair, modification, misuse, abuse, or alteration of the product is not covered by this limited warranty.
  • Consumable items such as gas rings, O’ rings, etc., are not warranted.
  • Luth-AR, LLC complete assembled uppers will be warranted for a period of 1 (one) year after the complete upper was purchased.
  • The warranty applies towards defects in materials or workmanship of the complete upper. Luth-AR will pay for all warranty repairs, at no charge to the consumer. Please supply a copy of the invoice for proof of purchase.
  • The use of re-load ammunition, proof rounds, or factory ammunition that exceeds initial SAAMI specifications voids any warranty. Any repairs or modifications not done by Luth-AR also voids any warranty.
  • Complete uppers not assembled or built by Luth-AR are not covered by the 1 (one) year warranty.
  • Please call our warranty department at (763) 263-0166 or email info@luth-ar.com for any warranty issues.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

Customer Reviews

Based on 4 reviews
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A
Anthony
Very Nice Adjustable Stock

Extremely pleased with this new stock for my SOCOM CQB. Highly adjustable and well-made.

D
Dave
Awesome Stock!

I bought this for an AR platform long ranger 6.5 Grendel rifle I am building. The stock is absolutely amazing! The adjustability is on point and it can fit anyone with the wide range of adjustability. AT3 as always had it shipped out super fast and the price was the best i found.

D
DAVID A FARKAS
a plus

Tried you competitor's and wouldn't work on my 15-22. Sent it back. The Luth
worked great!

U
Umberto Belluomini
MBA-3 Stock

I like the look and feel of it. A great improvement over the stock I had.

Thanks for sharing your feedback! We're glad you are satisfied with your purchase!

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