Brownells Chamber Brush, Bronze, 20 Gauge, 5/16″-27 Thread, 3-Pack

This bronze chamber brush is sized for 20 gauge shotguns with a 5/16″-27 thread to match that common rod pattern, giving owners a dedicated chamber-cleaning tool. Clearing carbon from the chamber helps shells feed and extract smoothly. The 3-pack rounds out a complete 20 gauge cleaning kit.