Brownells #3 Acid Brush 9/16'' Bristle Width 6'' Length 144/Pack

The Brownells #3 Acid Brush is a versatile shop workhorse designed for the kind of detailed cleaning and application tasks that come up constantly in firearms maintenance, gunsmithing, and general shop work. With a 9/16" bristle width and 6" overall length, this brush hits the sweet spot between precision and practicality—small enough to get into tight spaces like rifle actions and receiver grooves, but sturdy enough to handle real work without falling apart. A 144-pack means you'll have brushes on hand for every project without rationing.

Whether you're swabbing out carbon and debris from an action after a range session, applying solvent to corroded parts, spreading a light coat of protective oil, or applying bore cleaner deep into hard-to-reach spots, the #3 delivers. The design—a modern update on the classic tinner's acid brush—gives you fine bristle control for precision work while resisting the solvents and oils you're actually using in your shop. Unlike cheap disposable brushes that shed or splay after one use, Brownells' acid brushes hold their shape and bristle integrity through repeated cleanings.

Shooters, gunsmiths, and reloaders keep these in their cleaning kits, tool boxes, and on their benches. They're cheap enough to use without guilt, effective enough to keep using, and practical enough that you'll find new jobs for them constantly. Stock a bulk pack and you won't be caught without one.

Key Features

• 9/16" bristle width—precise enough for detail work, robust enough for real cleaning
• 6" length provides good reach and control
• 144 brushes per pack—stock your shop, truck, and range bag
• Solvent and oil-resistant bristles hold up through repeated use
• Classic tinner's design proven in gunsmithing and shop environments

Specifications

Frequently Asked Questions

What can I use an acid brush for in firearm maintenance?

The #3 brush works for applying solvents and oils into receiver grooves and actions, cleaning carbon out of tight spaces, applying bore cleaner, and brushing away metal filings and debris. The narrow bristle width lets you work precisely without flooding large areas.

How many brushes do I actually get?

This pack contains 144 individual brushes, giving you plenty to keep one in your range bag, one in your cleaning kit, and spares on your bench or in your truck.

Will these bristles hold up to gun cleaning solvents and oils?

Yes. Brownells' acid brushes are designed to resist the solvents and lubricants commonly used in firearms and shop work, maintaining bristle integrity through repeated use.