2A Armament Builder Series Aluminum Castle Nut

Manufactured by 2A Armament
Manufactured by 2A Armament
1 Review

Out of Stock



The 2A Armament Builder Series is collection of high-quality AR-15 components at competitive pricing. The 2A Armament AR-15 Castle Nut is machined from lightweight aluminum as opposed to traditional steel. This allows it to weigh less but is still strong to keep your buffer secure. It also features a unique machined pattern to make your rifle look better. Build your next AR-15 from the ground up with high quality parts that look great and function well.

  • Machined from 6061-T6 aluminum
  • Hardcoat anodized
  • Mil-Spec
  • Lightening cuts

2A Armament is not just another firearms manufacturer. They are committed to exceptional craftsmanship and quality in the products they make. State of the art manufacturing paired with hand finishing of every part result in firearms with unmatched fit and finish.
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Brand2A Armament

WARNING: This Product can expose you to chemicals which is known to state of California to cause Cancer and Reproductive Harm. For more information, see www.p65warnings.ca.gov

Ratings & Reviews

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Nice look, no staking notches...


Great look, great finish. Only reason for the 4/5 is due to the lack of staking notches.