Essential for anyone that shoots an M4/M16/AR15.
The aggressive bronze bristles of the Otis chamber brush scrub the chamber, neck and shoulder. The steel bristles at the base scrub the star chamber of the locking lugs. The chamber brush has a standard 8-32 thread.
WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.