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Luth-AR MBA-2 Stock Kit 308 Black Rifle-Length AR-10 Buttstock

UPC: 859992007357

$106.17

2 in stock

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Description

The Luth-AR MBA-2 Stock Kit takes the classic fixed-stock feel and trims away the weight and bulk you don't need. This is the rifle-length .308 version, so it comes with the correct components to build out an A2 buffer system on your AR-10 or LR-308 pattern lower. The stock itself is molded from super-strong glass-filled nylon and features a skeletonized profile that keeps things light while staying stiff and consistent behind the trigger. There's no wobble here like you'd feel with a lot of adjustable stocks, just a solid, planted cheek weld shot after shot.

What the MBA-2 Kit Brings to a .308 Build

What makes this a kit and not just a stock is that Luth-AR includes the guts too. You get the MBA-2 buttstock, an A2 buffer extension tube, a standard recoil buffer, and a .308/7.62 buffer spring tuned for the heavier bolt carrier group in an AR-10. That means you're not chasing down separate parts or guessing on spring rates. Bolt it to a lower that's set up for a rifle-length A2 tube and you're squared away. It shares the familiar 13.5-inch length of pull of a traditional A2 stock, so it feels right at home if you've run one before.

Fixed Simplicity, Modular Options

The MBA-2 is the pared-down sibling to the adjustable MBA-1, built for folks who want the reliability of a fixed stock without paying for adjustability they'll never touch. It carries molded-in QD cup pockets on both sides that accept Grovtec self-tapping cups, plus a bag hook underneath that's handy when you're shooting off a rest or bench bag. The receiver end plate is integrated right into the design, and the castle nut and lock ring are part of the setup for a tight, rattle-free install.

Whether you're finishing a precision .308 build, a hunting rifle, or just want to ditch a beat-up mil-spec A2, the MBA-2 is a dependable pick that installs with basic tools and holds up over the long haul.

Key Specifications

  • Manufacturer: Luth-AR
  • Manufacturer Part Number: MBA-2K308
  • Model: MBA-2K308
  • UPC: 859992007357
  • Color: Black
  • Product Type: Fixed Rifle Stock Kit
  • Caliber Compatibility: .308 / 7.62 AR-10 / LR-308
  • Buffer Tube Type: A2 Rifle-Length
  • Material: Glass-Filled Nylon
  • Length of Pull: 13.5 in
  • Sling Attachment: Molded QD cup pockets (both sides)
  • Design: Fixed, skeletonized with integrated receiver end plate

What’s Included

  • MBA-2 fixed rifle buttstock (Black)
  • A2 buffer extension tube
  • Standard recoil buffer
  • .308/7.62 buffer spring
  • A2 buttstock mounting screw

Frequently Asked Questions

What do I need to install the Luth-AR MBA-2 Stock Kit 308?

The kit includes the buttstock, A2 buffer tube, standard buffer, and .308 buffer spring, so you get the core components in the box. You'll want an AR-10 or LR-308 lower set up for a rifle-length A2 buffer system. Installation is straightforward and can be done with basic tools, including a 1/4-inch Allen wrench.

Is the MBA-2 stock compatible with AR-15 lowers too?

The MBA-2 buttstock mounts to any standard A2 rifle-length buffer tube, so the stock itself works on both AR-15 and AR-10 platforms. This particular kit, though, ships with the .308/7.62 buffer spring and components matched to an AR-10. If you're building a 5.56 AR-15, you'd want the AR-15 rifle version of the kit instead.

Does the MBA-2 come with sling swivels?

Sling swivels and QD cups are not included with the kit. The stock has molded QD cup pockets on both sides that accept Grovtec self-tapping cups, which are sold separately. Luth-AR leaves them out to keep the price down and let you set up the sling side and hardware brand you prefer.

How does the MBA-2 differ from the adjustable MBA-1?

The MBA-2 is a fixed stock, meaning it doesn't offer the adjustable length of pull or cheek rise found on the MBA-1. It's the simpler, more affordable option for anyone who doesn't need those adjustments. You still get the lightweight skeletonized glass-filled nylon build, QD pockets, and a bag hook for bench work.

Additional information

UPC

859992007357

Manufacturer

Manufacturer Part Number

MBA-2K308

Color

Black

Model

Product Type

Stock

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