The "SPECIAL LINE" Brass Core Bore Brush by Brownells is designed for 9mm, 38/357 caliber handguns, with a focus on preventing barrel scratches during cleaning.
It features high-quality phosphor bronze bristles with a one-piece, looped and wound brass shank for durability and a no-scratch brass coupling.
The brush comes in a 3-pack with overall lengths tailored for pistols/revolvers and specific threading for compatibility with cleaning rods.