Brownells Chamber Brush, Bronze, 12 Gauge, 5/16″-27 Thread, 3-Pack

This bronze chamber brush is shaped to clean the chamber of 12 gauge shotguns, with a 5/16″-27 thread to fit that standard rod thread pattern. Chamber-specific brushes get into geometry that a bore brush passes right over. The 3-pack is a smart addition for shotgun owners who want a truly complete cleaning.