The Otis Technologies Chamber Brush (Otis Technologies part no. FG368HT) is sized for 7.62mm chambers and threads onto an 8-32 cable end, letting a shooter attach it to a compatible Otis cleaning cable or rod for chamber-specific cleaning. Rather than relying on a bore brush alone, a dedicated chamber brush scrubs the chamber walls and locking-lug recess where carbon and fouling build up fastest, especially on a rifle that sees regular use. Otis builds its brushes to standard 8-32 thread specifications, keeping them compatible across most of its cable-based cleaning systems. It’s a low-cost addition to any 7.62mm cleaning kit for shooters who want a thorough chamber cleaning, not just a bore pass.

Key Specifications

• Sized for a 7.62mm chamber.
• Threads onto an 8-32 cable or rod end.
• Purpose-built as a chamber brush rather than a standard bore brush.

Frequently Asked Questions

What is a chamber brush used for? It scrubs the chamber walls and locking-lug recess where carbon and fouling build up, an area a standard bore brush doesn’t reach.

What thread does this brush use? It’s cut for an 8-32 thread, compatible with most Otis cable-based cleaning systems.

Buy the Otis 7.62mm Chamber Brush, 8-32 Thread

Get a thorough chamber cleaning on a 7.62mm rifle with this Otis chamber brush. Browse our full gun cleaning kits and supplies selection and order from our Lubbock, Texas gun shop for fast, direct shipping.