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Luth-AR AR Modular Buttstock Assembly with Cheek Rest

Luth-AR AR Modular Buttstock Assembly with Cheek Rest


Stock# LUTMBA4CHP UPC 859819007027

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Luth-AR AR Modular Buttstock Assembly with Cheek Rest Details

  • Black


Luth-AR AR Modular Buttstock Assembly with Cheek Rest Specifications

The Luth-AR Modular Buttstock Assembly (MBA) for AR style carbines is designed to replace the standard buttstock on your AR. The MBA-4 with Cheek Rise is designed to work with a 6-position Mil-Spec or Commercial buffer tube. The MBA-4 with Cheek Rise is a direct replacement a standard adjustable carbine buttstock with an adjustable Cheek Rise in a low-cost, lightweight, strong and high-quality design. The MBA-4 also features an anti-rattle set screw. The modular design of the MBA Buttstock allows you to configure your buttstock to your specific and personal needs. Built-in rail attachment for attaching a monopod. The MBA features multiple attachment points for a sling, including molded pockets that will accept Grovtec QD cups, sold separately.

MBA-4 with Cheek Piece is our new revolutionary designed stock! This stock is to be paired with Carbine AR rifles allowing shooters to have full adjustability. Not only is it the lightest and most affordable fully adjustable carbine buttstock on the market, it includes several stand-out features. This stock works with both carbine Commercial and Mil-Spec tubes/assemblies.

The MBA-4 with Cheek Piece is designed for shooters who do not need the additional Length-of-Pull and 3-axis butt plate adjustability of the MBA-3, but desire the adjustable cheek rise.

Proudly made in the U.S.A.


  • Fits all 223 and most 308 AR style rifles
  • Available in Black or Flat Dark Earth
  • Strong and lightweight, 10 ounces
  • Easy to Replace and quick to install
  • It adds up to 1-inch of height on the cheek rest
  • Adapts To Existing Commercial and Mil-Spec Buffer Tubes
  • Certain after Market Commercial Buffer Tubes that exceed 1.1172″ diameter may not fit
  • Super Strong Glass Filled Nylon
  • Ergonomic
  • Easy to add buttplate (adjustable Luth-AR accessory)
    • If you are upgrading the MBA-4 stock with a butt plate assembly you will need to also purchase the MBA-4 upgrade package
    • 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 Luth-AR's MBA-1 and MBA-2 Rifle buttstocks as alternatives.

    Compatible Buffer Assemblies:

    • 223 Mil-Spec Carbine Buffer Assembly
    • 223 Commercial Carbine Buffer Assembly
    • 308 Mil-Spec Carbine Buffer Assembly
    • 308 Commercial Carbine Buffer Assembly

    Note: Luth-AR's MBA-4 is designed to fit standard Mil-Spec and Commercial Tubes. Some Savage tubes have been found to be oversized making our stock fit very tightly. Please note that you may need to simply purchase a standard carbine tube in order for this to pair correctly. Note: Customers have reported that the MBA-4 fit the buffer tube that comes on the new model 110 BA Stealth. If you have the older model 110 BA you may have to simply change the buffer tube.

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