Otis' msr/ar cleaning system is ideal for a quick, effective cleaning in the field or a thorough cleaning back at the bench.It comes packaged in a lightweight soft pack with a belt loop for convenient carrying.Included is 8" and 30" memory-flex cables for breech-to-muzzle cleaning, bronze bore brush and mongoose g2 brush which remove copper deposits and other fouling, specialized precision tools for complete breakdown and fine cleaning, otis' bio clp which helps lubricate and protect the barrel, and a b.O.N.E.Tool to clean bolt carrier assemblies effectively.This cleaning system is for 5.56mm rifles.Caliber Or Gauge: 223 Rem,5.56 NATOType: Cleaning KitSize: 223/5.56Pieces: 1 KitBristle Type: BronzeLength: 8"/30"Includes: Soft CaseTip Features: SlottedCase Material: NylonHazair: Yes