Chamber Brush

The Kleenbore Chamber Brush (model M16C) is a precision cleaning tool engineered for military and law enforcement professionals who rely on AR-15, M16, and 5.56mm rifle platforms. Proper chamber maintenance is critical to reliable firearm function—carbon buildup, primer residue, and fouling accumulate in the chamber faster than in the bore, directly affecting ignition consistency and cartridge seating. This specialized brush addresses that specific need, allowing shooters and armaments personnel to maintain chamber cleanliness separate from general bore cleaning routines.

The chamber brush features a dual-diameter phosphor bronze construction designed to clean the chamber in two distinct stages. The first stage uses a larger brush diameter to scrub chamber walls and remove heavy carbon and powder residue, while the second stage provides a precision fit for detailed chamber throat and case-head pocket cleaning. Both brush sections employ a looped core wire threaded through a brass coupling with #8-36 threading, a standard that integrates seamlessly with Kleenbore rod systems and compatible aftermarket cleaning rods. Phosphor bronze—softer than steel—ensures aggressive cleaning action without scoring or damaging precision chamber dimensions, which is essential for maintaining headspace and cartridge fit integrity.

Tactical shooters, military armorers, and competitive rifle competitors benefit most from dedicated chamber brushes, particularly after high-volume training sessions or deployment cycles. Law enforcement duty rifles and patrol carbines accumulate chamber fouling rapidly under sustained use; regular chamber-specific cleaning extends bolt carrier group life and reduces malfunction rates. The M16C is directly compatible with standard M16, AR-15, and all 5.56mm NATO platforms. Pair this brush with your existing cleaning rod system—the #8-36 threading ensures compatibility with most tactical cleaning kits—and establish a maintenance schedule that addresses chamber cleaning at least every 500 rounds or after every duty rotation.