Pro-Shot Products Chamber Maid AR-15/M4/M16 5.56 NATO/.223 Rem Chamber Star Tool Set

The Pro-Shot Chamber Maid AR Platform Chamber Star Tool Set (CMK-556) is a purpose-built chamber cleaning kit for 5.56 NATO and .223 Remington AR-15, M4, and M16 rifles. Designed to scrub carbon and fouling out of the star chamber and locking lug recesses, the kit gives shooters a fast, repeatable alternative to picking the bolt lugs by hand.

At the core of the set is a heavy-duty coated flexible chamber rod with #8-32 threads that follows the star chamber geometry, paired with a detachable handle for controlled insertion and removal. The flexible shaft lets the cleaning head conform to the locking lug recesses where standard rods and patches cannot reach.

The CMK-556 includes a 5.56 NATO/.223 Rem chamber brush, a 5.56 NATO/.223 Rem nylon bore brush for spreading CLP or oil evenly across the star chamber, and the proprietary chamber star swabs that lift loosened carbon and fouling out of the lug recesses. Components are built from bronze, rubber, and steel for repeated use.

The Chamber Maid AR Platform Tool Set is sized specifically for the 5.56mm/.223 caliber AR-platform bolt carrier group.