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  • MBA-3 Black .308 Mil Spec Buffer
  • MBA-3FFK308-M
  • MBA-3-FDE-308-MilSpec-Buffer-Kit

MBA-3 Carbine Buttstock with .308/7.62 Mil-Spec Buffer Assembly

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The MBA-3 adjustable Rifle Buttstock Assembly is a complete kit that includes everything you need to assemble a carbine buffer system on your .308/7.62 AR lower. The kit includes an MBA-3 Buttstock that features a 3-Axis Buttplate with Length-of-Pull adjustment as well as Height and Lateral adjustments, and an adjustable Cheek Rise in a lightweight, affordable carbine buttstock. Comes complete with Mil-Spec 6-position carbine Buffer Tube, .308/7.62 Buffer, .308/7.62 Buffer Spring, Latch Plate and Lock Ring. 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. Available in Black or Flat Dark Earth or Freedom Flag Cheek Rest.

 

 

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From: $238.90

This package includes:

  • (1) MBA-3 Modular Buttstock Assembly
  • (1) Carbine 6-Position Mil-Spec Buffer Tube
  • (1) .308/7.62 Carbine Buffer Spring
  • (1) .308/7.62 Buffer Body – 3.8 oz, 2.5″ Length
  • (1) Latch Plate
  • (1) Lock Ring

The MBA-3 includes the following features:

  • Buttstock assembly to mount to a Carbine AR
  • Fits .308/7.62 AR style rifles
  • Easy to Replace and quick to install
  • It adds up to 1-inch of height on the cheek rest, and an additional 1-1/16 inch length of pull
  • Made of super strong glass-filled nylon, the Luth-AR MBA-3 weighs roughly half that of comparable stocks coming in at just 18 ounces.
  • Includes a Picatinny Rail on the bottom rear of the Stock Body to attach your choice of many accessories.
  • Designed a flat bottom index set screw (10-24) to eliminate that constant rattle of carbine collapsible buttstock. This also allows you to secure the stock in your favorite position.
  • 3-axis adjustable butt plate assembly (keep in mind this butt plate assembly is interchangeable with the original MBA-1 Buttstock) will have the following movement:
    1. Horizontal for linear adjustment (i.e. length of pull)
    2. Vertical for a perfect butt plate fit into the curvature of the shoulder.
    3. Lateral adjustment for a ½ inch left or right cast.
  • Ergonomic
  • The MBA-3 and MBA-4 are available in Black or Flat Dark Earth
  • Uses 4 out of the 6 positions on a mil-spec or commercial tube
  • If you require a butt stock that will utilize the first 2 holes of the buffer tube to fully collapse, you can remove the cheek rest from the MBA-3, or order an MBA-4, order an MBA-4 and a 3-axis buttplate or order an MBA-5 buttstock.
  • The vertical struts for the MBA-3 are fixed therefore the cheek piece is not reversible like the MBA-1 however the cheek piece itself is designed with a cheek pad for left-handed use
  • 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 our MBA-1 and MBA-2 Rifle buttstocks as alternatives.

Specifications

  • 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: 18.5 ounces

*Length of Pull Specs depend on Buffer Tube Hole Location/Position and 5 or 6 hole pattern.

Compatible Buffer Assemblies:

  • .223/5.56 Mil-Spec Carbine Buffer Assembly
  • .223/5.56 Commercial Carbine Buffer Assembly
  • .308/7.62 Mil-Spec Carbine Buffer Assembly (Included)
    • Material: 6061-T6 Aluminum
    • Finish: Hardcoat Anodized Black
  • .308/7.62 Commercial Carbine Buffer Assembly

Additional Information:

  • When used with the smaller diameter Mil-Spec tube you can adjust the set screw located on the left hand side using the included 3/32” Allen wrench. Turn clockwise to slowly tighten the set screw until it contacts the buffer tube. The Anti-rattle set screw is NOT designed to lock the position of the stock. Over tightening may damage the butt stock.
  • When sliding the buttstock onto a 6-position buffer tube, the lock pin has a notch in the head of the lock pin that must line up with a tab on the stock body. Once the slot and tab are lined up, the pin can be fully retracted allowing the buttstock to slide onto the tube. The MBA-3 should slide easily without resistance. If there is any resistance, the lock pin is not fully retracted. 

The MBA-3 Kits do not include the following items, they can be purchased separately in the accessories section:

    • Sling Swivels (Side or Rear) Sold Separately, see below.
Buttstock Type

MBA-3

Color

, ,

Caliber

.308/7.62, .223 / 5.56

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