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  • MBA-1-Black-With-Buffer-Kit
  • MBA-1-FDE-With-Buffer-Kit
  • MBA-1FF

MBA-1 Rifle Buttstock w/.223 Buffer Assembly

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The MBA-1 fixed Rifle Buttstock Assembly is a complete kit that includes everything you need to assemble an A2 rifle buffer system on your .223/5.56 AR lower. The kit includes an MBA-1 Buttstock that features adjustable Length-of-Pull, and adjustable Cheek Rise, in a lightweight, affordable rifle buttstock. Comes complete with A2 Buttstock extension tube, Standard Buffer, and a .223 Buffer Spring. The modular design of the MBA Buttstock allows you to configure your buttstock to your specific and personal needs. The MBA features multiple attachment points for a sling, including molded pockets that will accept Grovtec QD cups, sold separately. A rail attachment is available. Available in Black, Flat Dark Earth and Black with Freedom Flag Cheek Rise.


From: $185.90

This package includes:

  • (1) MBA-1 Modular Buttstock Assembly
  • (1) A2 Buttstock Extension Tube
  • (1) Standard .223 Buttstock Buffer Spring
  • (1) Standard Buffer Body Assembly – 5.1 oz

The MBA-1

  • Fully adjustable: extra 1″ height on cheek rest, additional 1 1/16″ length of pull with extended length buttplate
  • Approximately half the weight of competitors’ adjustable stocks The “MBA” weighs just 1.26 lbs.
  • Easy to replace and quick to install
  • Fits all .223 and most .308 AR style rifles
  • Super Strong Glass Filled Nylon


  • Modular buttstock assembly for the AR
  • Interchangeable with standard A1 or A2 buttstocks or any aftermarket buttstock with overall length of approximately 10.5″
  • Length: 10 3/8″ ( 11.5″ extended )
  • Sling Swivels (Side or Rear) Sold Separately, see below. Also see Tech-Tip Videos
  • Not interchangeable with carbine rifles with telescoping assemblies.
  • Fully Ambidextrous and can be comfortably used shooting off either shoulder (Cheek piece pre-installed for right handed shooters but can be installed on either side for right or left hand shooters)

Our Buffer Tube Assembly Kit contains:

(1) A2 Buttstock Extension Tube

(1) Standard .223 Buttstock Buffer Spring

(1) Standard Buffer Body Assembly – 5.1 oz

Installing A2 buffer system on a carbine may affect function.


SKU: MBA-1K — Black

SKU: MBA-1F — Flat Dark Earth

SKU: MBA-1FF — Black with Freedom Flag Cheek Rest



Buttstock Type


Buffer Tube


Buffer Weight

5.1 oz

Available Colors

Black, Flat Dark Earth



Buttstock Weight

18.4 oz



Cheek Rise

1" Fully Extended

Collapsed Length-of-Pull


Extended Length-of-Pull

11 1/2"

Additional Length-of-Pull

1 1/16″


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