BRONZE Pistol, Rifle and Shotgun Brush AND Cotton MOP Brush 17 TO 54 CALIBER
Shotgun Brushes all have 5/16"-27 T hread. Pistol Brush Caliber sizes 22 to 45 caliber have 8-32 Aluminum T hread. Pistol Brush Caliber size. 17 and 204 have 5-40 Brass Thread. Rifle Brushes all have 8-32 Aluminum T hread.