Aero Precision Receiver Extension Castle Nut

Manufactured by Aero Precision
SKU: APRH100082C
MPN: APRH100082C
Manufactured by Aero Precision
4 Reviews
$3.59 $4.24

In Stock

Standard orders will ship out 2 business days if ordered by 3:30 pm CST, Monday-Friday. FFL orders will ship within 5 business days or less as long as we have the information for the transfer destination.



The Aero Precision Receiver Extension Castle Nut is a standard Mil-Spec part for completing your AR-15 stock assembly. Machined from steel and Manganese Phosphate coated for long term durability.

  • Mil-Spec
  • Steel construction
  • Manganese Phosphate finish

Aero Precision takes some of the most state-of-the-art manufacturing techniques and equipment derived from their work in the aerospace industry and applies it to their products in the firearms industry. They have utilized their knowledge from years of building aircraft components to design and engineer AR-15 handguards, receiver sets, scope mounts, and more. They treat every product as if it were a precision flying machine and adhere to strict quality standards to ensure law enforcement, military, and civilian customers receive a product they can rely on.
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BrandAero Precision

Ratings & Reviews

4 reviews

  • 4 stars
  • 0 reviews
  • 3 stars
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  • 1 star
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Awful staking notches

by -

Seems nicely made, but the staking notches are small round divots unlike the larger square military notches. I seriously doubt that they would hold a stake well. Do not recommend this at all with so many better options for the same price
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Does the job

by -

Nice threads, no binding when installing. No frills, does the job, cheap. Checks all boxes for me.

Does its job

by -

Its a castle nut. It threads, it holds the buffer tube on, and it may not be fancy, but its a quality piece. No tooling marks or inconsistencies. 10/10 would recommend.

Typical Aero

by -

Solid, quality part for a good price.