Hoppes 1323P Phosphor Bronze AR-15 Chamber Brush 5.56mm/.223 - 8/32 Thread

The Hoppes 1323P is a purpose-built rifle chamber brush engineered to scrub the tight spaces inside an AR-15 chamber. Sized for .223 Remington / 5.56mm NATO, it is designed to reach all of the nooks and crannies of the chamber where carbon, copper, and powder fouling accumulate and are otherwise tough to remove with a standard bore brush alone.

The brush pairs a phosphor bronze bristle section with a steel chamber scrubber, giving it the right balance of aggression and brass-safe contact to lift heavy fouling from the throat and chamber body without damaging the bore. Its compact stepped profile is purpose-shaped for the AR-15 chamber rather than a one-size-fits-all design, so it follows the chamber's contours for a thorough clean.

A standard 8-32 male thread on the tail screws into any common cleaning rod with 8-32 female threading, making the 1323P a drop-in addition to virtually any rod-driven AR-15 cleaning kit. The brush is sold as a single brush per package.

Manufactured by Hoppes in the USA to the brand's longstanding quality standard, the 1323P is the correct dedicated chamber brush to keep an AR-15's chamber carbon-free, supporting reliable extraction, consistent lock-up, and dependable accuracy over a long service life.