Otis FG338NB Bore Brush Set - 9mm/38/375/380 Cal Bronze/Nylon

The Otis FG338NB Bore Brush Set delivers professional-grade cleaning performance for multiple pistol calibers with its dual-bristle construction. This versatile set handles 9mm, .38 Special, .375, and .380 caliber firearms using precision-engineered bronze and nylon bristles that remove fouling without damaging barrel surfaces.

What Makes This Different

Unlike single-material brushes that either lack scrubbing power or risk barrel damage, this set combines bronze bristles for stubborn carbon removal with nylon bristles for delicate finishing work. Each brush measures exactly 2 inches in length with 8-32 threading that fits standard cleaning rods. The dual-material approach extends barrel life while maintaining cleaning effectiveness across thousands of rounds.

Key Features

• Dual bronze and nylon bristle construction for comprehensive cleaning
• Compatible with 9mm, .38 Special, .375, and .380 caliber pistols
• Standard 8-32 threading fits most cleaning rod systems
• 2-inch brush length provides optimal bore contact
• Two brushes per package for extended service life
• Bronze bristles tackle carbon buildup and copper fouling
• Nylon bristles provide gentle final cleaning without scratching

These brushes maintain consistent performance through competition seasons, duty carry rotations, and high-volume training sessions. The bronze bristles cut through powder residue and metal fouling that accumulates during rapid-fire strings, while nylon bristles polish the bore to factory smoothness. Both materials resist deformation under normal cleaning pressure, ensuring reliable contact with rifling grooves.

Technical Specs

• Caliber compatibility: 9mm, .38 Special, .375, .380
• Thread specification: 8-32 standard
• Brush length: 2 inches
• Bristle materials: Bronze and nylon combination
• Package quantity: 2 brushes
• Manufacturer: Otis Technology
• Model number: FG338NB

This brush set represents proven Otis engineering focused on barrel preservation and cleaning efficiency. The standardized threading ensures compatibility with existing cleaning kits, while the caliber-specific sizing eliminates guesswork during maintenance routines.