Breakthrough Clean Phosphorous Bronze Bristle Bore Brush is durable for effective cleaning without damaging your bore. The twisted brass core keeps brush rigid and has a deeper cleaning action than Nylon brushes. Standard #8-32 thread (standard shotgun #5/16-27 thread on .410/28g/20g/12g) One per package.
| Material | Brass/Bronze |
|---|---|
| Bristle Type | Bronze |
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