• Machined from Aluminum for tighter concentricity to reduce potential bolt carrier binding
  • Mil-Spec diameter
  • Carbine length
  • 6 adjustment positions. 1 fully collapsed, and 5 other positions
  • Self-alignment with buffer detent
  • Made in the U.S.A.


  • Material: 6061-T621 Aluminum
  • Finish: Type III Class 2 Hardcoat Anodized
  • Weight: 3.74 oz.
  • Length: 7.18"


  • AR-15 and AR-10


  • 2A Armament Builder Series AR-15 Carbine Buffer Tube
    • 1x Mil-Spec 6-position buffer tube
  • 2A Armament Builder Series AR-15 Carbine Buffer Tube Assembly
    • 1x Mil-Spec 6-position buffer tube
    • 1x Castle nut
    • 1x Lightweight QD End Plate


Wing Tactical is proud to bring AR builders some of the best quality components on the market at a great value. Continuing down that path, we’re happy to introduce you to 2A Armament Builder Series Buffer Tube. When you choose this buffer tube, you’ll get a great component at an exceptional value.

It’s An Adjustable Carbine Length Tube

2A’s Mil-spec 1.148 diameter buffer tube is machined from 6061-T651 billet. That allows it to keep far better concentricity than extruded or forged tubes. The 2A Armament Builder Series Buffer Tube is a carbine length tube that features 6 adjustments from fully collapsed through 5 different functional positions to support the pull length you need for your operating situation.

Quality Features for Great Performance

The 2A Armament Builder Series Buffer Tube self-aligns with your buffer detent for easy assembly. It features a longer carrier flange for better support and enhanced anti-tilt performance. If weight is a concern for your build, you’ll be happy to know that this tube comes in at just 3.6 ounces, so you still have a little wiggle room in your reduced weight build for other components that don’t stick to diets very well.

Build with Confidence

When you buy 2A Armament’s Builder’s series parts from Wing Tactical, you can feel secure in the fact that you’re getting quality parts at a great value. Not only that, our customer service team is staffed by real gun people ready to answer any questions you might have and help with any problems you might have after the sale. Our customer service specialists know our products and your project. Buy with confidence, Give Yourself an Edge.

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