KleenBore Black Nylon Bore Brush .40/.41/10mm Handgun

The KleenBore Black Nylon Bore Brush .40/.41/10mm Handgun is purpose-built for efficient cleaning of .40 S&W, .41 Magnum, and 10mm handgun barrels. Featuring heavy-duty black nylon bristles, this bore brush delivers aggressive scrubbing action without the corrosion risk associated with brass or steel alternatives—a critical advantage for operators maintaining firearms in harsh environments or salt-air conditions. The brush's stiff bristle construction penetrates fouling and carbon buildup effectively, making it suitable for routine maintenance between range sessions and deep cleaning protocols.

Built to American Standard #8-32 threads, this bore brush is compatible with standard cleaning rod assemblies and commercial gun cleaning kits used by law enforcement and military armorers. The dense array of thick nylon bristles provides superior bristle-to-bore contact compared to lighter brush designs, translating to faster carbon removal on high-volume firing days. At 0.01 lbs and measuring 3.9 inches in length, the brush is compact and portable—ideal for field kits, range bags, and mobile armory setups where space and weight are considerations.

This brush addresses the specific bore geometry and fouling characteristics of mid-bore handgun calibers. Officers and competitive shooters transitioning between .40 S&W duty loads and 10mm practice ammunition require caliber-specific cleaning tools; this brush handles the tighter bore specifications of both cartridges. The nylon construction ensures consistent performance across high round counts without degradation, making it a cost-effective addition to maintenance protocols for duty weapons, training firearms, and backup pistols that see regular use.