Dense, durable Nyflex™ fiber brushes offer maximum bristle area per square inch to thoroughly clean specific parts of the weapon without risk of scratching bore or the aluminum components. Includes brushes for .223/5.56mm bore, upper receiver, chamber, and bolt carrier.
AR-15, Issue:11, Page:078
Big Book Catalog, Issue:68, Page:078
Sinclair, Issue:5B, Page:158
SPECS: Brushes - Nyflex nylon fiber. Brush Pak contains bore brush, upper receiver brush, chamber brush, and bolt carrier brush.