Bore Tech Proof Positive Rifle Cleaning Brush 20 Caliber 5 x 40 Thread Nylon Package of 3

Product #: 997359 Bore Tech #: BTNR-20-003 UPC #: 667739202039
$8.19

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Product Information

Bore Tech's Proof Positive Nylon Bore Brushes have twice the amount of bristles compared to the competition, resulting in double the scrubbing action and faster cleaning. These brushes feature oversized bristles for extra rigidity and non-brass cores and couplers which prevent false indication of copper fouling remaining in your bore.

The 17 - 20 caliber brushes are 1" in length and the 22 - 50 caliber brushes are 2-1/2" in length.

Technical Information: Bore Tech Proof Positive Bore Brush

Core Material: Steel
Core End: Rounded
Bristle Material: Nylon


Bore Brush Thread Guide

Gun Type Caliber/Gauge Thread Type Thread Male/Female
Rifle/Pistol 17 to 20 Commercial 5 x 40 Male
Rifle/Pistol 22 to 50 Commercial 8 x 32 Male
Shotgun All Commercial 5/16 x 27 Male
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