Real Avid AVAR15CB Chamber Boss 5.56mm/.223 Rem AR-15 Cleaning Tool

The Real Avid AVAR15CB Chamber Boss is a purpose-built AR-15 chamber cleaning tool designed to tackle the toughest fouling in one of the hardest-to-reach areas of your rifle. If you shoot 5.56mm or .223 Rem, you know that carbon buildup in the chamber compromises reliability and accuracy — but cleaning it thoroughly has always been awkward. The Chamber Boss solves that problem with a complete cleaning system that stores compactly in one ergonomic handle and gives you precision control where you need it most.

The tool's self-centering design is its real strength. The handle aligns automatically with your barrel extension lugs and rotates smoothly inside the chamber, letting you apply consistent pressure to every surface. That matters when you're dealing with baked-on carbon that won't budge with standard bore brushes. The kit includes a precision scraper shaped to fit barrel extensions and internal chamber geometry, an AR-15 chamber brush for getting into corners, and five wool Star Chamber Pads pre-soaked in CLP to lift away the loosened fouling. The black oxide-coated steel shaft resists corrosion and handles repeated use without wearing out.

Real Avid included the Pivot Lock tool to hold your upper receiver at the right angle while you work — no fumbling with vice blocks or makeshift rigs. Everything stores inside the handle itself, so you're not juggling loose pieces or forgetting tools at the range. Whether you're a competitive shooter chasing sub-MOA groups, a hunter maintaining a cold-bore rifle, or just someone who believes in clean guns running right, the Chamber Boss cuts your cleaning time and actually works.

Key Features

• Complete AR-15 chamber cleaning system in one compact handle
• Self-centering design aligns automatically with barrel extension lugs for precision contact
• Precision scraper fits barrel extensions and internal chamber geometry
• AR-15 chamber brush reaches into corners and tight spots
• Five wool Star Chamber Pads pre-soaked in CLP for carbon extraction
• Black oxide-coated steel shaft for durability and corrosion resistance
• Pivot Lock tool holds upper receiver at optimal cleaning angle
• All components store conveniently inside the handle

Specifications

Frequently Asked Questions

Will this work on my AR-15 upper?

Yes. The Chamber Boss is designed specifically for AR-15 chamber cleaning and works with standard AR-15 barrel extensions and upper receiver geometry. The self-centering handle aligns with barrel extension lugs, so it fits precisely across AR-15 platforms.

What's included in the kit?

The Chamber Boss comes with a precision scraper, an AR-15 chamber brush, five wool Star Chamber Pads pre-soaked in CLP, and a Pivot Lock tool to hold your upper open at the right angle while cleaning.

How do I use the Pivot Lock tool?

The Pivot Lock securely holds your upper receiver open during cleaning, providing the optimal angle and stability so you can focus on scrubbing carbon without balancing or clamping the gun yourself.

Can I replace the cleaning pads?

The kit includes five wool Star Pads pre-soaked in CLP. The description provided does not specify whether replacement pads are available separately.