Pro Shot .223 Cal/5.56MM Military Style Nylon Chamber Brush 223NCH

The Pro Shot .223 Cal / 5.56mm Military Style Nylon Chamber Brush is a dedicated tool for the most difficult stage of AR-platform maintenance: the star chamber. Standard bore brushes cannot reach the deep locking lug recesses where carbon layers build up. This dual-diameter brush is engineered to match the internal geometry of the M4 and AR-15, allowing you to scrub the chamber walls and the locking lug area simultaneously.

Clean locking lugs are a mechanical necessity for reliable bolt engagement. When carbon accumulates in these recesses, it can prevent the bolt from seating fully, leading to failures-to-battery or inconsistent cycling. By using a geometry-matched brush, you ensure these critical tolerances are maintained, allowing the bolt lugs to travel and lock without interference from hardened fouling.

The 223NCH features stiff, chemical-resistant nylon bristles secured to a heavy-duty brass core with standard 8-32 threading. This reinforced construction allows the dual-diameter head to scour the chamber body and star chamber in a single pass. The durable nylon holds its shape even when saturated with aggressive carbon solvents, ensuring long-term utility in any maintenance kit.

Features

• Dual-Diameter Brush Geometry Chamber and locking lug recess sections mirror AR-15 chamber dimensions for simultaneous cleaning of chamber walls and star chamber carbon deposits
• Heavy-Duty Nylon Bristles are resistant to ammonia-based solvents and deformation for consistent scrubbing performance across repeated cleanings
• Tightly Wound Brass Core Reinforced coupling structure ensures stable brush rotation under chamber pressure and rod torque
• Standard #8-32 Thread Interface Industry-standard cleaning rod compatibility for direct integration with most rifle cleaning systems

Technical Specifications

• SKU: 223NCH
• Thread Type: #8-32 (American Standard cleaning rod thread)
• Core Material: Tightly wound brass with reinforced coupling
• Bristle Material: Heavy-duty stiff nylon
• Geometry: Dual-diameter chamber and locking lug brush
• Compatibility: .223 Remington / 5.56x45mm NATO chambers
• Platform Compatibility: AR-15, M4, M16 style rifles
• Function: Chamber and star chamber carbon removal
• Origin: Made in the USA

Carbon buildup in the AR-15 star chamber is one of the most common causes of reliability problems, and the correct tool makes the difference between surface cleaning and true chamber maintenance. The Pro Shot 223NCH Military Style Nylon Chamber Brush delivers geometry-correct cleaning designed for the AR platform. Get professional-grade firearm maintenance tools you can trust by ordering from SMKW, the trusted source for serious shooters and armorers.