Product DescriptionPro-Staff .17 Caliber - .22 Caliber Rimfire - .223 Centerfire Chamber Brush.
Designed for competition shooters to withstand frequent use.
Like our bore brushes, the chamber brush is also made to last with a brass core, looped end, and bronze bristles.
American Standard # 8-32 thread.
This is a manufacturer’s picture, so the item may not be exactly as it appears in the picture.