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Mfg Item #: BT-357/38/9MM
Breakthrough Nylon Bristle Bore Brush features stiff nylon bristles that easily attack heavy fowling. It has a rugged brass core and a Standard #8-32 thread (standard shotgun #5/16-27 thread on .410/28g/20g/12g). One per package.
| Material | Brass/Nylon |
|---|