Luth-AR MBA-3 Stock

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Luth-AR MBA-3 Stock

If you are still running a Mil-Spec M4 carbine stock on your AR-15 or AR-10, it is time to upgrade. The Luth-AR carbine buttstock is just the upgrade you need as it offers near unlimited adjustability. The cheek rest has one inch of height adjustments and the length of pull can add an additional 1-1/16 inch to be custom fit to your arm length. The rubber but pad can also be raised or lowered depending on your preference and shooting position. It is compatible with Mil-Spec or commercial 6-position carbine buffer tunes and is made from glass-filled nylon that retains strength while reducing weight. The MBA-3 carbine stock is also compatible with .223 or .308 caliber rifles if you get the correct buffer and recoil spring. Upgrade to this ergonomic buttstock today and you will understand why Luth-AR is the go-to brand when it comes to 3 gun competition rifles.


  • Made from glass-reinforced nylon
  • Durable textured adjustment knobs
  • Adjustable length of pull
  • Adjustable cheek rest height
  • Adjustable butt plate assembly (horizontal, vertical, and lateral)
  • Bottom picatinny rail for monopods
  • Flat bottom index screw that eliminates rattle
  • Requires SKU: GT-CUP for QD sling attachment point

The modular buttstock assembly is perfect for building a carbine length AR-10 battle rifle for fun at the range or hunting hogs out in the field. The buttstock includes a bottom mounted picatinny rail for attaching monopods for when you need to shoot prone or off the bench and want extra stability. It also features a socket that is compatible with the GT-CUP reversible quick detach sling swivel mount for long hunts out in the field or long days at the gun range. Additional recoil pads of different style and density can be purchased to further customize the feel of your rifle.

The Luth-AR company was founded by the same man who founded the DPMS and Panther Arms firearms companies. Randy Luth started as a machinist and built his way up to leading some of the most recognizable and respected companies in the firearms industry. The Luth-AR company now owns seven patents for high quality AR-15/.308 components and accessories that are built for the competition shooter, hunter, and gun enthusiast.

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