Breakthrough Clean BT40NBB Nylon Bristle Bore Brush .40

Breakthrough Clean Nylon Bristle Bore Brush has a rugged brass core. Its stiff nylon bristles easily attack heavy fouling. Standard #8-32 thread (standard shotgun #5/16-27 thread on .410/28g/20g/12g)

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Purpose:	Attack Heavy Fouling
Thread Pattern:	#8-32
Caliber:	.40 Cal
Bristle Type:	Nylon
Material:	Brass Core
Compatible With:	10mm
Series:	Bore Brush
Model:	Nylon Bristle