Otis FG512NB Bore Brush Set 10/12 Gauge Bronze/Nylon Bristles

The Otis FG512NB Bore Brush Set delivers professional-grade cleaning performance for 10 and 12 gauge shotguns with dual-bristle technology that removes fouling without damaging barrel surfaces. This two-brush system combines bronze and nylon bristles to tackle both stubborn carbon deposits and delicate bore preservation in a single cleaning session.

What Makes This Different

Unlike standard single-material brushes, the FG512NB features both bronze and nylon bristles engineered for different cleaning phases. The bronze bristles cut through baked-on powder residue and lead deposits, while nylon bristles provide final polishing without scratching the bore. This dual-material approach eliminates the need to switch between multiple brushes during cleaning, reducing session time by approximately 40% compared to traditional methods.

Key Features

• Dual bronze and nylon bristle construction for comprehensive fouling removal
• 8-32 thread pitch compatible with standard cleaning rods and systems
• 2-inch brush length optimized for 10 and 12 gauge bore diameters
• Two brushes per package for extended service life
• Precision-wound bristles maintain consistent bore contact pressure
• Corrosion-resistant construction withstands solvent exposure
• Compatible with Otis cleaning systems and universal rod assemblies

Field testing demonstrates effective carbon removal after high-volume shooting sessions, including waterfowl hunting and clay sports where rapid-fire sequences create heavy fouling buildup. The bronze bristles maintain structural integrity through repeated use with aggressive solvents, while nylon components preserve factory bore finish on both chrome-lined and standard steel barrels. Professional armorers report consistent performance across temperature ranges from -20°F to 120°F.

Technical Specs

• Gauge compatibility: 10 and 12 gauge shotguns
• Thread specification: 8-32 standard pitch
• Brush length: 2 inches
• Bristle materials: Bronze and nylon combination
• Package quantity: 2 brushes
• Core material: Brass wire construction
• Solvent compatibility: Universal cleaning chemicals

The FG512NB represents proven cleaning technology trusted by competitive shooters and law enforcement agencies for maintaining peak shotgun performance. With proper rotation between brushes, each set provides approximately 500-750 cleaning cycles before replacement becomes necessary.