Hoppe's 5.56mm/.223 Rem AR Chamber Brush

The Hoppe's 5.56mm/.223 Rem AR Chamber Brush (Model 1323P) is a precision cleaning tool designed specifically for the AR-15 platform and other rifles chambered in 5.56mm or .223 Remington. This chamber brush reaches deep into the bolt carrier group area and chamber neck, removing carbon fouling, powder residue, and copper buildup that standard bore brushes cannot access. Proper chamber maintenance extends barrel life and ensures consistent ignition across high-volume shooting sessions.

The brush features a robust construction optimized for the geometry of 5.56mm chambers, where carbon accumulation accelerates when firing M193, M855, or civilian ammunition. Its compact 1.75-inch diameter and 4.85-inch overall length allow it to navigate the tight confines of an AR-15 upper receiver without binding. The bronze bristles are stiff enough to dislodge stubborn deposits yet designed not to damage chamber walls or the bolt face when used with proper cleaning rod technique and solvents. Weighing only 0.02 lbs, the brush integrates easily into any field cleaning kit or range bag without adding significant bulk.

This brush is essential for AR operators, law enforcement patrol rifle units, and competitive shooters who maintain tight accuracy standards. After high-round-count training days or duty fire, chamber fouling directly affects bolt seating and primer pocket cleanliness—two critical variables for reliability and shot-to-shot consistency. Hoppe's has manufactured firearms cleaning products for over a century, and their chamber brush line reflects that precision heritage. Compatible with standard .27-.28 caliber cleaning rods, the 1323P pairs effectively with Hoppe's solvent line and other quality gun cleaning systems.