Tapco Ar Field Gun Cleaning Kit 223 Cal/5.56Mm 12 Black. 56mm 12 Black - The TAPCO AR Field Cleaning Kit includes all hardware components needed to clean a 5.56mm/.223Cal.Kit includes 25.5in / 67.31cm working length cleaning rod locking swivel T handle Nylon double ended brush patch holder bench rest bore brush military-style chamber brush and cotton cleaning patches. Tapco TAP22011 AR Field Gun Cleaning Kit 223 Cal/5.56mm 12 Black