Bore Brushes

GUNNIX bore brushes are replaceable phosphor bronze brushes on a threaded brass core. They screw onto a cleaning rod or flexible cable and travel through the bore to scrub out carbon, lead, copper fouling and plastic wad residue. Patches and mops only collect the grime; it is the bristles that break it loose from the metal. Our catalog covers sizes from.17 to.50 for rifled barrels, dedicated models for 12, 16 and 20 gauge shotguns and.410 bore, plus a 5.56 chamber brush for the AR platform.

Why Choose GUNNIX Products

We specialize in developing and manufacturing firearm cleaning products. Our designs are developed in the USA, production is carried out at facilities we have carefully vetted, and every GUNNIX brass bore brush undergoes our internal quality control before being shipped to our warehouse. Three things our customers choose us for:

• Barrel-safe materials. Phosphor bronze bristles and a twisted brass wire core are softer than barrel steel. The brush wears down, not your rifling.
• Exact diameter. Every bore cleaning brush is made for a specific bore size, so the bristles sit tight against the walls.
• Easy replacement. Gun cleaning brushes wear out over time, so we sell them separately: as singles or in packs of 3, 5, 10 and 20 at a discount.

Explore Our Selection of Bore Brushes

Whatever is sitting in your safe, GUNNIX has a brush to match every barrel. Picking the right one comes down to a few simple criteria.

By Caliber

One gun bore brush covers every cartridge that shares the same bore diameter, so the lineup is shorter than the list of cartridges:

• .17 – for.17 HMR.
• .22 – for.22 LR,.223 Rem, 5.56 NATO.
• .243 – for.243 Win and 6mm Rem.
• .25 – for.25 ACP,.25-06 and.250 Savage.
• .270 – for.270 Win and.270 WSM.
• .28 – for.280 Rem, 7mm-08 and 7mm Rem Mag.
• .30 – for.308 Win,.30-06,.30-30,.30 Carbine,.300 Win Mag, 7.62 NATO, 7.62x39.
• .357/9mm – for 9mm,.357 Magnum,.357 Sig,.38 Special,.380 ACP.
• .40 – for.40 S&W and 10mm Auto.
• .45 – for.45 ACP,.45 Colt,.454 Casull.
• .50 – for.50 AE and.500 S&W.
• 12 GA, 16 GA, 20 GA and.410 – for smoothbore shotguns.

By Firearm Type

A bore brush for gun owners comes in three groups:

• Rifle – every rifle caliber from.17 to.50.
• Pistol and Revolver –.22,.25,.357/9mm,.40,.45 and.50.
• Shotgun – 12 GA, 16 GA, 20 GA and.410.

For AR-15 owners, the lineup also includes a 5.56mm chamber brush: it cleans the chamber rather than the bore, reaching where a standard brush cannot.

By Rod Compatibility

GUNNIX brushes come in three thread standards:

• 8-32 – the rifle and pistol standard, fits GUNNIX brass rods and flexible cables.
• 5-40 – the fine thread on the.17 brush, which needs an adapter for an 8-32 rod.
• 5/16-27 – the shotgun standard for 12, 16, 20 GA and.410.

If your rod uses a different thread, the replacement parts section has adapters between all three standards. And a brass bore brush set in a 10- or 20-pack is the smart buy for anyone who cleans after every range trip and does not want to reorder a brush every month.

Benefits of Brass Bore Brushes

A bore cleaner brush made of these alloys delivers four advantages that neither nylon nor steel can offer:

• Scrubbing power. Springy bronze bristles lift baked-on carbon and lead that nylon only smears across the walls.
• Effective copper removal. High-velocity.30 and.22 cartridges leave a layer of jacket copper that solvent alone cannot shift without bronze.
• Safe for steel. The alloy is softer than the barrel, so even thousands of passes leave no scratches on the rifling.
• Suitable for deep cleaning. A GUNNIX bronze bore brush with solvent is what brings the barrel back to factory condition after the season, when a bore snake no longer keeps up.

Common Mistakes When Using Gun Cleaning Brushes

Even the best bore brush from GUNNIX will not save your barrel if it is used the wrong way. Five mistakes we see most often:

• Wrong caliber. A brush that is too small never touches the walls; one that is too large jams, bends the core and leaves broken bristles in the bore.
• Reversing inside the bore. The bristles point one way, and turning around mid-barrel snaps them at the base. Let the brush exit the muzzle completely before pulling it back.
• Excessive force. If a gun cleaning brush drags, the problem is not your grip but the wrong size or a dry bore. Wet the bristles with solvent and do not lean on the rod.
• Wrong material. Steel brushes from cheap kits scratch chrome lining and rifling; nylon will not touch copper fouling. Bronze is what you need for primary cleaning.
• Worn or dirty brush. Once the bristles lie flat, a gun brush just spreads the grime around. Rinse it after every session, and replace it once it no longer holds its shape.

Buy GUNNIX Gun Cleaning Brushes for Complete Firearm Care

We offer every size in the lineup as an individual item, not only as part of a kit, so you can restock any caliber whenever you need. The best gun cleaning brushes from GUNNIX pair with our brass rods, flexible cables, mops and jags, and together they cover every stage of cleaning. Buying on gunnix.us gives you access to the full refill catalog and to volume-discount packs. Add the bore cleaning brushes you need to your cart today, and if you are unsure about the size, drop our support team a line and we will help you choose.