LUTH-AR MBA 3 Carbine Stock


LUTH-AR MBA 3 Carbine Stock


Use Coupon Code:  STOCK


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  • Description
  • Additional information
  • Installation
  • Reviews
  • Questions & Answers


LUTH-AR MBA 3 Carbine Stock

Luth-AR MBA 3 carbine stock is strong, quick, simple, affordable and the newest fully adjustable stock assembly on the market.  100% Manufactured and assembled in America, the Luth-AR MBA 3 is the perfect buttstock assembly for your next 3 gun AR carbine build.

The Luth AR MBA 3 has a fully adjustable cheek piece, adjustable length of pull, and is completely ambidextrous.  Several options exist for sling attachment.  Left and right flush cups capable of accepting QD (Quick Detach) accessories.  A slot in the rear of the stock accepts a standard A2 sling swivel, as well as several locations to install a slip-through sling.  The MBA 3 adapts to either a MILSPEC or commercial carbine buffer tube, and is both quick and easy to install.  The MBA 3 also comes with a built in picatinny rail section on the bottom rear of the stock to attach your choice of many accessories.  We here at Arm or Allybelieve Luth AR has a great product.  From its strong durable construction, lightweight features, full adjustability, and appearance, all at an affordable price.

Fully Adjustable

The Luth AR MBA 3 is ambidextrous, fully adjustable, and can be comfortably fired from either shoulder.  1″ vertical cheek rest adjustment and a 1 1/16″ length of pull adjustment.  Additional length of pull is available with an extended length buttplate. 3-axis adjustable buttplate assembly is interchangable with the original Luth-AR MBA 1 stock, and has the following movement:  Horizontal for length of pull adjustment, vertical for a perfect butt plate fit into the curvature of the shoulder, and Lateral adjustment for a 1/2 inch left or right cast.

Weight and Durability

Made from glass filled nylon, the MBA-3 is super strong and weighs approximately half that of competitors’ adjustable stocks.

Installation is quick and simple, fits most all AR-15 and AR-10 platforms, and is interchangeable with most aftermarket 5 or 6 position adjustable stocks.  Certain aftermarket Commercial Buffer Tubes that exceed 1.172″ may not fit.

Technical Specifications

  • Manufacturer:  Luth-AR
  • Length of Pull (LOP) – Extended: 15 5/8″
  • Length of Pull (LOP) – Collapsed: 11 11/16″
  • Overall Length Extended: 8 3/4″
  • Overall Length Collapsed: 7 11/16″
  • Weight: 18 oz
  • MSRP:  $159.95

Additional information

Weight 22 oz

Black, FDE




Lower Receiver Parts, Stock


AR10, AR15

MBA 3 Installation Instructions

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