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.
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| Weight | 0.1 lbs |
|---|---|
| Dimensions | 4.8 × 3 × 0.2 in |
| Size | Mil-Spec |
| Model | |
| Finish | |
| Material | Steel |
| Manufacturer | Advanced Technology |
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