Allen Company BT-20GNBB Nylon Bristle Bore Brush 20 Gauge

Product Description

The ALLEN COMPANY BT-20GNBB is a nylon bristle bore brush designed for 20-gauge firearms. Built on a brass core, the brush provides firm, consistent contact with the bore wall to dislodge fouling, carbon deposits, and residue during routine cleaning. Nylon bristles are safe for use with all standard bore cleaning solvents and will not scratch rifling or chamber surfaces. The brass core resists corrosion and holds its shape through repeated passes. Each package contains six brushes, making this an efficient choice for gunsmiths, range operators, and field technicians who clean multiple firearms regularly.

This bore brush is suited for 20-gauge shotgun cleaning applications in both professional and high-volume settings. Gunsmiths, armories, and shooting range staff will find the six-unit packaging practical for maintaining inventory on the bench. The nylon bristle construction makes it compatible with aggressive solvents that would degrade natural fiber brushes, extending service life in demanding cleaning routines.

Key Features

• Nylon bristles resist solvent degradation and will not scratch bore or chamber surfaces
• Brass core construction provides corrosion resistance and maintains brush shape
• Sized specifically for 20-gauge bore diameter for consistent wall contact
• Packaged in units of six for bench and inventory efficiency
• Lightweight at 0.4 pounds per package for easy handling and storage

Compatibility

Designed as a standard replacement bore brush for 20-gauge shotguns requiring nylon bristle cleaning tools.

Installation Notes

Bore brushes are used by gunsmiths and firearms technicians during routine maintenance. Always verify the firearm is unloaded and the action is open before inserting any cleaning tool into the bore. Thread the brush securely onto a compatible cleaning rod before use and run it through the bore in a single direction where possible to reduce bristle fatigue. Dispose of brushes when bristles show significant wear or deformation.

Technical Specifications

• Gauge: 20
• Bristle Material: Nylon
• Core Material: Brass
• Package Quantity: 6 per package
• Unit of Measure: EA
• Weight: 0.4 pounds

Standard Information

• Brand: ALLEN COMPANY
• Manufacturer Part Number: BT-20GNBB