KleenBore A191N Nylon Bore Brush .40/.41/10mm 8-32 Thread

The KleenBore A191N bore brush delivers effective cleaning for .40 S&W, .41 caliber, and 10mm handguns without the aggressive scrubbing that can damage rifling. Nylon bristles provide thorough fouling removal while protecting barrel integrity during regular maintenance.

What Makes This Different

Unlike bronze brushes that can leave residue or cause excessive wear, this nylon construction removes powder fouling and carbon buildup without scratching the bore surface. The 8-32 thread pitch ensures secure attachment to standard cleaning rods, preventing wobble that reduces cleaning effectiveness. Nylon bristles maintain their shape longer than natural fiber alternatives, providing consistent performance across hundreds of cleaning cycles.

Key Features

• Nylon bristles safe for all barrel finishes including stainless steel and coated bores
• 8-32 thread pitch compatible with most cleaning rod systems
• Sized specifically for .40 S&W, .41 caliber, and 10mm bore diameters
• Chemical resistant construction withstands solvents and cleaning compounds
• Looped and wound bristle design prevents bristle loss during use
• Corrosion-resistant brass core maintains structural integrity
• Professional-grade construction suitable for high-volume cleaning

This brush excels in law enforcement armories where multiple firearms require regular maintenance without risk of bore damage. Competition shooters rely on nylon brushes for frequent cleaning between matches, as the gentle action removes fouling without affecting precision. The chemical resistance handles aggressive solvents used for lead removal in high-volume shooting scenarios.

Technical Specs

• Caliber compatibility: .40 S&W, .41 caliber, 10mm Auto
• Thread pitch: 8-32 standard cleaning rod thread
• Bristle material: High-grade nylon
• Core material: Brass wire construction
• Overall length: Approximately 2.5 inches
• Manufacturer: KleenBore (J. Dewey Manufacturing)
• Made in USA

Professional armorers choose KleenBore brushes for their consistent performance and barrel-safe design. This A191N model provides the thorough cleaning needed for reliable handgun function while preserving accuracy-critical bore dimensions over thousands of rounds.