Otis FG3402B Bronze Bore Brush .40 Cal 8-32 Thread 2"

The Otis FG3402B Bronze Bore Brush is a precision firearm cleaning tool sized for .40 caliber bores, cleaning .40 S&W and 10mm Auto pistol chambers, and also fitting .410 gauge shotgun bores.

Featuring high-quality phosphor bronze bristles, this single brush scrubs caked-on fouling, powder residue, and copper deposits from barrel walls without damaging the rifling. The bristles deliver the right amount of abrasion for modern steel barrels while remaining gentle enough for routine cleaning.

The brush measures 2 inches in length and is built on a stem with the standard 8-32 thread pattern, making it compatible with standard 8-32 threaded cleaning rods and Otis memory-flex cables. Pair it with Otis bore solvent and cotton patches for a complete bore-cleaning routine.

Compact and affordable, the FG3402B is an essential addition to any range bag or cleaning kit for routine .40 S&W, 10mm Auto, and .410 bore maintenance.