American Made Parts for American Rifle Builders

2A Armament

2A Armament, Builder Series, AR15 Buffer Tube Assembly, 5-Position Billet Buffer, Aluminum End Plate, Steel Barrel Nut, Anodize Black Finish

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The Builder Series offers a vast number of 2A Armament components that have been made with the AR builder in mind. The Builder Series offers high quality products at a competitive price.

The Builder Series AR15 Buffer Tube Assembly is manufactured in-house and finished with hard anodize for lasting performance. It is billet machined from 6061-T651 aluminum for tighter concentricity than a forging or impact extrusion to reduce potential for bolt carrier binding. The assembly includes a 2A Latch Plate as well as a 2A Castle Nut.

Features and Specifications:

  • 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