Description
The Armaspec Self-Retention Castle Nut is a machined 7075-T6 aluminum castle nut for mil-spec AR-15/M4 buffer tubes, finished in black hardcoat anodizing. Its self-retaining locking thread geometry secures the nut against loosening without staking or thread locker, allowing tool-free installation and easy future disassembly.
- Material : 7075-T6 aluminum
- Finish : Black hardcoat anodized
- Design : Self-retaining/no-stake locking threads
- Compatibility : Mil-spec AR-15/M4 buffer tubes and end plates
