Description
Third Generation N4 Barrel Nut is part for NSR, NHR, NSR-SD or NQR Handguard. This part is reversible for precise timing on 3rd generation models.
Features
- 1 1/16″ Wrench Flats Included
- Reversible for Precision Timing
- Manganese Phosphate Finish
- Does NOT fit 4th Generation Handguard




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