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.
“Magpul MAG560BLK PMAG GEN M3 20rd 223 Rem/5.56x45mm NATO Fits AR-15/M16/M4 Black Polymer” has been added to your cart. View cart
| 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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