The Otis law enforcement cleaning system is designed for law enforcement pistols and sub guns 9mm through 45cal 223 Cal/5.56mm, 308 Cal/7.62mm rifles, and 12 ga shotguns. It includes 8 inches and 30 inches memory-flex cables, six (6) firearm-specific, heavy-duty bronze bore brushes to remove copper deposits and other fouling, and specialized precision tools allow complete breakdown and detailed cleaning of your firearm..