Otis AR-15 (.223/5.56) Chamber Brush

The Otis chamber brush with tapered bronze bristles effectively cleans the chamber, neck, and shoulder of your 7.62x51mm NATO and .308 Winchester firearms. It features steel bristles at the base for scrubbing the star chamber’s locking lugs, while the bronze bristles clean the chamber. The brush’s brass stem is cold-welded to the core, and the tip is folded. Designed with a standard 8-32 thread, it fits most cleaning rods and is ideal for use with AR-15s chambered in .223/5.56.