The Breakthrough Clean Technologies Nylon Bristle Bore Brush is designed for .357 / .38 Cal / 9mm. The rugged brass bore and stiff bristles will not flatten or damage the bore while attacking heavy fouling.
- Standard #8/32 Thread (Standard Shotguns #5/16-27 Thread on .410/28g/20g/12g)
- Weight: 0.05 lbs
- Dimensions: 3 x 5 x 0.25 in.
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