Luth-AR MBA-4 Carbine Buttstock with Cheek Rest Black

The Luth-AR MBA-4 Carbine Buttstock with Cheek Rest is a practical upgrade for any AR-15 or AR-pattern carbine running a standard buffer tube. If you're running irons, a red dot, or a magnified scope on your carbine, a proper cheek weld matters—and the MBA-4's adjustable cheek rise lets you dial in the height that works for your setup and your shooting position. It's a direct swap for a factory adjustable stock, designed to be lightweight, durable, and strong without the premium price tag of boutique options.

The MBA-4 works with both Mil-Spec and Commercial carbine buffer tubes, so you don't need to replace your buffer assembly. The modular design means you can configure sling attachments, add a monopod via the built-in rail, and lock everything down with the anti-rattle set screw to keep your setup quiet on the move or at the bench. Multiple sling attachment points—including molded pockets sized for Grovtec QD cups (sold separately)—give you real flexibility for hunting, tactical training, or range use.

Whether you're fine-tuning a precision rifle build or just tired of your factory stock feeling wrong behind your optic, the MBA-4 delivers solid ergonomics and modularity at a price that won't break the budget.

Key Features

• Adjustable cheek rise for improved sight picture alignment with optics and irons
• Compatible with both Mil-Spec and Commercial 6-position carbine buffer tubes
• Lightweight and strong modular design
• Anti-rattle set screw keeps components locked in place
• Built-in rail attachment point for mounting a monopod
• Multiple sling mounting options, including molded pockets for Grovtec QD cups
• Adjustable position carbine stock replacement

Specifications

Frequently Asked Questions

Will the Luth-AR MBA-4 work on my AR carbine?

Yes, as long as your rifle has a standard 6-position Mil-Spec or Commercial carbine buffer tube. The MBA-4 is designed as a direct replacement for adjustable carbine stocks and does not require replacing your buffer assembly.

Can I mount a sling and other accessories on this stock?

Yes. The MBA-4 includes multiple sling attachment points and molded pockets that accept Grovtec QD cups (sold separately). There's also a built-in rail attachment point if you want to add a monopod.

What is the cheek rise and why do I need it?

The adjustable cheek rise helps you achieve a consistent, comfortable cheek weld to your optic or iron sights. This is especially useful if you're running a scope, red dot, or magnified optic at a height different from a standard factory stock, or if you need to adjust for different shooting positions and body armor.

Does this stock rattle or move around on the buffer tube?

The MBA-4 features an anti-rattle set screw that locks the stock securely in place, minimizing movement and noise.