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
Products available on this page:
- Armaspec Self-Retention "No Stake" Castle Nut - Black - Color: Black | SKU: ARM6521-BLK | UPC: 810048493999
- Armaspec Self-Retention "No Stake" Castle Nut - FDE - Color: FDE | SKU: ARM6521-FDE | UPC: 810048494002
- Armaspec Self-Retention "No Stake" Castle Nut - OD Green - Color: OD Green | SKU: ARM6521-ODG | UPC: 810048494019
- Armaspec Self-Retention "No Stake" Castle Nut - Bronze - Color: Bronze | SKU: ARM6521-BRZ | UPC: 810048494026
