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Questions & Answers
what is your buffer weight for the 308 version? Expert Answer

The Luth-AR MBA-3 Carbine Buttstock .308 model has a 3.8oz buffer.

by Hunter, Gear Expert, May 27, 2022
Is the color of the FDE actually darker than in the picture displayed? It looks more like dessert sand to me. Expert Answer

The color does appear to be slightly darker on LUTH-AR's website. You can see a photo of the color at https://www.luth-ar.com/wp-content/uploads/2016/05/MBA-3-FDE.jpg.

by Tiffany S., Gear Expert, June 28, 2019
Customer Reviews
Helpful Positive Review Savage 10BA Stealth by ChikinNWafols, Verified Owner, August 2, 2018
I put this in my Savage 10BA Stealth using the stock buffer tube. The fit is very tight and it’s very hard to manipulate the stock adjustment. I’m thinking it would probably be best to get a new buffer tube. The product itself is very sturdy looki...
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12/13 found this helpful
Helpful Positive Review My favorite aftermarket AR stock by Wills, Verified Owner, May 21, 2023
I love this stock due to the number of adjustments and customizations it has. It makes your AR feel more like a long range weapon. The front hook area is perfect for gripping with your offhand while using a bipod. The screws on the stock will t...
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5/5 found this helpful
Helpful Positive Review Does Everything It's Supposed to Do.....and Looks Good Doing It by Uncle Doug, January 8, 2024
I ordered the MBA-3 Buttstock for my AR-15 as part of a conversion from tactical to long range target use. I needed an extra 1"+ pull, a cheek support to facilitate target acquisition on my rather tight-light-box scope, a picatinny rail for monopod a...
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1/1 found this helpful
Helpful Positive Review Great stock with lots of adjustability by CA, Verified Owner, May 14, 2023
Got my Luth-AR MBA-3 last week and I love it. It is super adjustable. However, keep in mind you will need to lock it once you put it in the position you want, otherwise it will rattle quite a bit. In addition, as others noted, you will need to extend...
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2/2 found this helpful
Helpful Positive Review Awesome Stock by Dean, Verified Owner, June 29, 2021
I bought this for an RN-50. The optics sit really high, so I needed an adjustable cheek riser. I was expecting the adjustments to need an allen wrench as other had said, but it doesn't. The pull-length and cheek-weld adjusters have thumb-screws. ...
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6/6 found this helpful
Helpful Positive Review grate stock by Dillon Janssen, Verified Owner, November 18, 2023
I got this stock for a m5 308 dmr build in fde.. The color matches perfect to the aero lower and upper.. Fits a stock ar buffer tube tight and has so much adjustments it can fight about any hight of person I'm 6'2" vary happy and will soon be buying ...
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1/1 found this helpful
Read All 79 Reviews
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Luth-AR MBA-3 Stock Assy. with Mil-Spec .308 Kit, Black, MBA-3K308-M
FAB Defense OPMOD Rear Polymer Flip-up Rear Sight, Grey, FX-RBS-OPMOD Grey
List: $302.94Save 22%$237.61
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Product Info for Luth-AR MBA-3 Carbine Buttstock

Install this Luth-AR 308 Mil-Spec Buffer Stock on your existing firearm's commercial or Mil-Spec buffer tube to experience the difference a more adjustable, lighter and stronger stock can make. Luth-AR designed each of these AR15 Stocks with a Picatinny rail on the bottom rear for the attachment of your favorite accessories that will enhance your precision and overall shooting experience. The extra-strength glass-filled nylon construction of the Luth-AR MBA-3 Carbine Stock Assembly makes it one of the lightest on the market while still offering uncompromising durability for any use. Length-of-pull, height and cheek rise are all adjustable to make your firearm finally feel like it's truly yours. Plus, there's even sling attachment points so that you can comfortably carry your firearm however you'd like. Unlike other buttstocks, this assembly won't make that annoying rattling noise thanks to the included flat bottom index screw. Advance your rifle build with the ergonomic and cost-effective Luth-AR MBA-3 Modular Buttstock Assembly.image

Specifications for Luth-AR MBA-3 Carbine Buttstock:

Manufacturer: Luth-AR
Gun Type: Carbine
Weight: 18.5 oz
Length: 8.75 in
Condition: New
Gun Make: AR Platform
Fabric/Material: 6061-T6 Aluminum

Features of Luth-AR MBA-3 Carbine Buttstock

  • Ergonomic Design
  • Adapts To Existing Commercial and Mil-Spec Buffer Tubes
  • Certain after Market Commercial Buffer Tubes that exceed 1.172? diameter, may not fit
  • The MBA-3 and MBA-4 are available in Black or Flat Dark Earth
  • The vertical struts for the MBA-3 are fixed, therefore the cheek piece is not reversible like the MBA-1 however the cheek piece itself is designed with a cheek pad for left-handed use
  • Caution: the MBA-3 and MBA-4 Carbine buttstocks are not designed to be used with Large Bore Calibers such as .338 Lapua or .50 BMG applications. See our MBA-1 and MBA-2 Rifle buttstocks as alternatives.
  • The MBA-3 Carbine buttstock is NOT interchangeable with A2 standard buffer tube. You will need to purchase a MBA-1 or MBA-2 Rifle buttstock to fit A2 tubes

Package Contents:

  • Luth-AR MBA-3 Carbine Buttstock

Luth-AR MBA-3 Carbine Buttstock Orderable Models

List of Orderable Models

Luth-AR MBA-3 Stock Assembly, Black, MBA-3 , MPN: MBA-3 , UPC: 862388000122 , Code: 3FN-BSC-MBA3S-MBA-3
Luth-AR MBA-3 Stock Assembly, FDE, MBA-3F , MPN: MBA-3F , UPC: 859819007003 , Code: 3FN-BSC-MBA3S-MBA-3F
Luth-AR MBA-3 Stock Assy. with Commerical .223 Kit, FDE, MBA-3FK-C , MPN: MBA-3FK-C , UPC: 859992007449 , Code: 3FN-BSC-MBA3S-MBA-3FK-C
Luth-AR MBA-3 Stock Assy. with Commerical .223 Kit, Black, MBA-3K-C , MPN: MBA-3K-C , UPC: 859992007401 , Code: 3FN-BSC-MBA3S-MBA-3K-C
Luth-AR MBA-3 Stock Assy. with Mil-Spec .223 Kit, Black, MBA-3K-M , MPN: MBA-3K-M , UPC: 859992007418 , Code: 3FN-BSC-MBA3S-MBA-3K-M
Luth-AR MBA-3 Stock Assy. with Mil-Spec .223 Kit, FDE, MBA-3FK-M , MPN: MBA-3FK-M , UPC: 859992007456 , Code: 3FN-BSC-MBA3S-MBA-3FK-M
Luth-AR MBA-3 Stock Assy. with Commerical .308 Kit, FDE, MBA-3FK308-C , MPN: MBA-3FK308-C , UPC: 859992007425 , Code: 3FN-BSC-MBA3S-MBA-3FK308-C
Luth-AR MBA-3 Stock Assy. with Commerical .308 Kit, Black, MBA-3K308-C , MPN: MBA-3K308-C , UPC: 859992007388 , Code: 3FN-BSC-MBA3S-MBA-3K308-C
Luth-AR MBA-3 Stock Assy. with Mil-Spec .308 Kit, FDE, MBA-3FK308-M , MPN: MBA-3FK308-M , UPC: 859992007432 , Code: 3FN-BSC-MBA3S-MBA-3FK308-M
Luth-AR MBA-3 Stock Assy. with Mil-Spec .308 Kit, Black, MBA-3K308-M , MPN: MBA-3K308-M , UPC: 859992007395 , Code: 3FN-BSC-MBA3S-MBA-3K308-M

Luth-AR MBA-3 Carbine Buttstock Unavailable & Discontinued Models

List of Unorderable Models

Open Box, Dealer Demo, Luth-AR MBA-3 Stock Assembly, Black, MBA-3 , MPN: MBA-3-DMO , Code: 3FN-BSC-MBA3S-MBA-3-DMO
Open Box, Dealer Demo, Luth-AR MBA-3 Stock Assembly, Flat Dark Earth, MBA-3F , MPN: MBA-3F-DMO , Code: 3FN-BSC-MBA3S-MBA-3F-DMO
DEMO, Luth-AR MBA-3 Stock Assembly, Black, MBA-3 , MPN: MBA-3-DEMO , Code: 3FN-BSC-MBA3S-MBA-3-DEMO
Open Box, Dealer Demo, Luth-AR MBA-3 Stock Assy. with Mil-Spec .223 Kit, Black, MBA-3K-M , MPN: MBA-3K-M-DMO , Code: 3FN-BSC-MBA3S-MBA-3K-M-DMO
Open Box, Dealer Demo, Luth-AR MBA-3 Stock Assy. with Mil-Spec .308 Kit, Black, MBA-3K308-M , MPN: MBA-3K308-M-DMO , Code: 3FN-BSC-MBA3S-MBA-3K308-M-DMO
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