The Pro-Shot 12 Ga Replacement Chamber Brush (Model: 12C) is a dedicated maintenance tool engineered to scrub plastic wad fouling, carbon, powder residue, and lead build-up directly out of 12 gauge shotgun chambers and forcing cones. Built with an oversized bristle diameter, it restores smooth cycling and prevents sticky extraction or failure-to-eject malfunctions in break-action, pump-action, and semi-automatic platforms. It serves as a direct replacement brush head for Pro-Shot chamber tools and attaches directly to any standard shotgun cleaning rod via standard American #5/16-27 male threads.

Key Features

• Chamber & Forcing Cone Cleaning: Oversized profile targets stubborn plastic wad fouling and baked-on carbon residue specifically within the chamber and forcing cone area.
• Bore-Safe Construction: Utilises heavy-duty looped brass core wire with a looped tip and premium phosphor bronze bristles to thoroughly scrub steel chamber walls without risk of scoring or scratching.
• Direct Rod Compatibility: Features standard #5/16-27 male threads for direct mounting onto dedicated shotgun cleaning rods and rigid chamber handles without requiring secondary thread adapters.
• Chemical Resistance: Solid brass and phosphor bronze components resist degradation from standard firearm solvents, CLPs, and lead-removing chemical solutions.

Specifications

• Brand: Pro-Shot Products
• Model: 12C
• Calibre/Gauge Compatibility: 12 Gauge chambers only
• Thread Interface: #5/16-27 (Male)
• Bristle Material: Phosphor bronze
• Core Material: Looped brass with brass coupling
• Packaged Dimensions: 14.0 cm (L) × 6.1 cm (W) × 2.3 cm (H)
• Unit/Shipping Weight: 0.045 kg to 0.055 kg

Who is the Pro-Shot 12 Ga Chamber Brush for?

• 12 gauge semi-automatic shotgun owners — targets chamber fouling that causes cycling failures by scouring heavy carbon and residue across 12 gauge actions with a dedicated oversized phosphor bronze 12 gauge chamber brush.
• Clay target shooters cleaning heavy wad residue — strips built-up melted plastic from high-volume shooting out of chambers and forcing cones using a direct-fitting #5/16-27 threaded chamber brush.
• Waterfowlers maintaining dirty action chambers — provides the rigid scrubbing force needed to clear debris from wet or fouled 12 gauge chambers using corrosion-resistant brass and bronze construction on a #5/16-27 thread mount.

Less suitable for: Sub-gauge shotguns including 20 Ga, 28 Ga, or .410 bore, which require dedicated smaller-diameter gauge-specific chamber brushes; rifle or pistol rods featuring standard #8-32 threads, which require a thread adapter; or full-length barrel passes, which require standard-diameter full-length bore brushes.