Birchwood Casey 41284 MSR Chamber Brush .556/.223 Bronze Steel

The Birchwood Casey 41284 MSR Chamber Brush delivers precision cleaning for .556/.223 chambers where standard brushes fail to reach. This specialized tool removes carbon buildup and fouling from the critical chamber area that affects extraction and accuracy. Bronze bristles paired with a steel core provide the perfect balance of cleaning power and chamber protection.

What Makes This Different

The MSR Chamber Brush features a unique angled design specifically engineered for modern sporting rifles. Unlike standard bore brushes that can't effectively reach chamber surfaces, this brush targets the precise geometry of .556/.223 chambers. The bronze bristle construction removes stubborn carbon deposits without scratching or damaging chamber walls. Professional gunsmiths recognize this tool as essential for maintaining extraction reliability and preventing stuck cases.

Key Features

• Bronze bristles remove carbon buildup without damaging chamber surfaces
• Steel core construction provides durability through repeated cleaning cycles
• Angled brush head design reaches all chamber surfaces effectively
• Compatible with standard cleaning rod systems and handles
• Specifically sized for .556/.223 Remington chamber dimensions
• Professional-grade construction for armorer and gunsmith use
• Threaded connection works with 8-32 cleaning rod threads

Chamber fouling directly impacts extraction reliability and can cause dangerous pressure spikes. This brush removes the carbon ring that forms at the junction between the case neck and chamber wall - an area critical for proper cartridge seating and extraction. Competition shooters rely on thorough chamber cleaning to maintain consistent accuracy, while duty users need reliable extraction under all conditions. The bronze bristles conform to chamber contours without creating wear patterns that standard steel brushes can cause.

Technical Specs

• Caliber compatibility: .556 NATO and .223 Remington
• Bristle material: Bronze wire construction
• Core material: Steel shaft for rigidity
• Thread specification: Standard 8-32 cleaning rod thread
• Overall length: Approximately 2.5 inches
• Bristle diameter: Sized for .556/.223 chamber dimensions
• Manufactured by Birchwood Casey
• Model number: 41284

Proper chamber maintenance extends barrel life and ensures consistent performance shot after shot. This brush addresses the specific cleaning challenges of semi-automatic rifles where chamber fouling accumulates faster than bolt-action systems. Professional armorers stock this tool for complete MSR maintenance protocols.