Armaspec Self-Retention "No Stake" Castle Nut
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- 90-day no-hassle returns policy
- Backed by the Armaspec Lifetime Warranty! what it covers
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Product description
Armaspec Self-Retention Castle Nut Eliminates Staking and Thread Locker
Features
- Patented self-retention thread design locks without staking or thread locker
- Tool-free installation and removal
- Mil-Spec compatibility with AR-15/M4 platforms
- 7075-T6 aluminum construction
- Hardcoat anodized finish resists corrosion
This castle nut solves the common problem of loose buffer tube assemblies that plague standard castle nuts over time. It works exceptionally well for builders who need reliable retention without permanent modifications or messy thread compounds. The patented self-retention design sets it apart by maintaining consistent torque and preventing loosening under recoil without requiring specialized tools or gunsmith services.
Specifications
- Brand: Armaspec
- Model: Self-Retention Castle Nut
- MPN: ARM6521
- Material: 7075-T6 Aluminum
- Finish: Hardcoat Anodized
- Compatibility: AR-15/M4 Buffer Tubes
- Colors Available:
- Black
- Flat Dark Earth (FDE)
- OD Green
- Bronze
What’s Included?
- 1x Armaspec Self-Retention Castle Nut
All 4 options on this page
- Armaspec Self-Retention "No Stake" Castle Nut - Color: Black | SKU: ARM6521-BLK
- Armaspec Self-Retention "No Stake" Castle Nut - Color: FDE | SKU: ARM6521-FDE
- Armaspec Self-Retention "No Stake" Castle Nut - Color: OD Green | SKU: ARM6521-ODG
- Armaspec Self-Retention "No Stake" Castle Nut - Color: Bronze | SKU: ARM6521-BRZ
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Warranty & returns
Backed by the Armaspec Lifetime Warranty!
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.
90-day no-hassle returns
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.
