Sinclair nylon bore brushes are oversized for proper barrel fitting and have a closed loop end, offering superior scrubbing action with stiff, heavy bristles.
These brushes are resistant to ammonia and oil-based cleaners, preventing the bristles from dissolving like they might with bronze brushes.
The 35 Caliber rifle nylon brush has a standard 8-32 male thread and is longer than the nylon pistol brushes offered by SINCLAIR INTERNATIONAL.