This steel AR-15 castle nut is virtually indestructible and works with commercial, military, and hybrid buffer tubes. It fits most AR-15s and AR variants, but it is not compatible with 308 rifles.
Specifications
- Type: Castle Nut
- Model: AR-15
- Size: Mil-Spec
- Finish: Black
- Material: Steel
Advanced Technology | MPN: A5101020 | UPC: 758152900067
