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2A Armament® Builder Series Buffer Tube Assembly - AR15

Manufacturer: 2A Armament®
Manufacturer part number: 2A-BSBT-A
GTIN: 854299007987
Availability: 17 in stock
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New for 2019 is our Builder Series AR15 Billet Buffer Tube Assembly.The Builder Series will offer a vast number of 2A Armament components that have been made with the AR builder in mind. Not only does the Builder Series offer extremely high quality products, but it also offers very competitive pricing. Assembly includes a mil spec castle nut and a 2A latch plate.

The Builder Series AR-15 buffer tubes are in house manufactured and finished with hard anodize for lasting performance.They offer less machined features in order to offer an extremely competitive price.
Features include:

  • Billet machined from 6061-T651 aluminum for tighter concentricity than a forging or impact extrusion to reduce potential for bolt carrier binding.
  • 5 position adjustment. 1 Fully Collapsed. 4 other positions.
  • Mil Spec extension diameter of 1.148, and thread diameter of 1.185
  • Carbine length
  • Vented
  • Self aligns with the buffer detent.
  • Weight Buffer Tube Only- 3.6 oz
  • Weight Assembly-4.3 Oz 


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