AR-15 Castle Nut

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  • AR-15 Castle Nut
  • AR-15 Castle Nut


Works with Commercial, Military & Hybrid Buffer Tubes Fits: AR-15 and all AR Variants.


More Information
Compatibility AR15 / M4 / M16
Buffer Tube Parts Castle Nuts
Note *Dual use compatible with shotgun adapter #4453 and #4454
Manufacturer Number 4971
SKU 145870
Brand ERGO® Grips
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