The Breakthrough Clean Technologies AR15 Upper Brush Set with Chamber Pads is a specialised firearm maintenance kit designed to remove baked-on carbon, fouling, and debris from standard mil-spec AR-15 upper receivers and barrel extensions. Built around industry-standard 8-32 male threading, each tool attaches directly to standard cleaning rods and flex cables to service hard-to-reach internal receiver geometries, bolt carrier cavities, and multi-lug star chambers.

Key Features

• Receiver-Specific Geometry: Includes dedicated nylon-bristle brushes shaped specifically for the internal contours of standard AR-15 upper receivers and bolt carrier groups.
• Star Chamber Cleaning System: Features a brass chamber pad adapter and 5 star-profile cleaning pads designed to clear carbon from barrel extension locking lugs.
• Dedicated Chamber & Bore Tools: Supplied with a .22 calibre nylon bore brush and a chamber mop to clean and remove excess solvent or oil from .223 Rem / 5.56 mm chambers.
• Universal Compatibility: Fitted with standard 8-32 male threads across all components for direct integration with standard firearm maintenance rods and handles.

Product Specifications

• Thread Standard: 8-32 male thread
• Bore Calibre Compatibility: .22 cal / .223 Rem / 5.56 mm
• Upper Receiver Brush: Contoured nylon bristle
• Bolt Carrier Brush: Contoured nylon bristle
• Bore Brush: .22 calibre nylon bristle
• Chamber Mop: Absorbent cotton/wool mop with 8-32 thread
• Pad Adapter: Solid brass with 8-32 thread
• Chamber Pads: 5 pre-cut star chamber wool/felt cleaning pads
• Packaged Weight: Approximately 50–100 g

Who is the Breakthrough AR15 Upper Brush Set With Chamber Pads for?

• Australian Modern Sporting Rifle Shooters — Requires an AR-specific upper receiver kit to clear fouling from multi-lug barrel extensions on Australian straight-pull, pump-action, or bolt-action rifles chambered in .22 calibre (.223/5.56 mm) using standard 8-32 threaded cleaning rods.
• Category D Primary Producer Licence Holders — Needs purpose-built brushes and 5 star-chamber cleaning pads to maintain semi-automatic Category D AR-15 platform internal bolt carrier groups and upper receiver walls.

Less suitable for: Firearm platforms larger than .22 calibre or rifles built on large-frame AR-10 (.308 Win) and traditional twin-lug bolt-action systems; these require large-bore bore brushes (.30 cal, 6.5mm, 9mm, 12GA) or calibre-specific AR-10 large-frame maintenance sets.