Armaspec Self-Retention “No Stake” Castle Nut and QD End Plate

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Armaspec “No Stake” Castle Nut and QD End Plate Combo Eliminates Staking While Adding Quick Disconnect

Features

  • Patented self-retention castle nut eliminates staking and thread locker
  • Integrated QD sling attachment point on end plate
  • Tool-free castle nut installation and removal
  • Integrated set screw for easy detent installation
  • Made in USA from premium aluminum alloys

This combo solves two common AR build problems – loose castle nuts that require permanent staking and the need for additional sling mounting hardware. It works exceptionally well for tactical applications requiring rapid sling transitions and for builders who want professional results without gunsmith modifications. The combination of self-retention castle nut technology with an integrated QD mount sets it apart by providing both secure buffer tube retention and versatile sling attachment in one complete package.

Specifications

  • Brand: Armaspec
  • Model: Self-Retention Castle Nut and QD End Plate
  • MPN: ARM6621
  • Castle Nut Material: 7075-T6 Aluminum
  • End Plate Material: 6061 Aluminum
  • Weight: 0.2 oz. (end plate)
  • Compatibility: AR-15/AR-10
  • Finish Options:
    • Black – Mil-Spec Type III Hard Coat Anodized
    • Bronze – Mil-Spec Type III Hard Coat Anodized
    • FDE – Cerakote
    • OD Green – Cerakote
  • Made in USA

What’s Included?

  • 1x Armaspec Self-Retention Castle Nut
  • 1x QD End Plate
  • 1x #4-40 x 3/16″ Set Screw

Products available on this page:

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Armaspec Lifetime Warranty

  • All Armaspec products carry a LIFETIME WARRANTY and are warranted to be free from defects in material or workmanship.
  • Should there be a defect, we will repair or replace the product at our discretion at no cost to you.
  • Lifetime warranty does not apply to products sold as “blemished” or “manufacturer refurbished”.
  • You must have proof of purchase to initiate a WARRANTY claim.

Please email to rma@armaspec.com to request an RMA number.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.

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