The Copper Eliminator Male-Thread Jags are made of machined aluminum, which does not react with ammonia-based solvents, preventing false positive indications of copper fouling.
These jags are designed to be gentle on the bore and muzzle, with a hardness similar to brass to avoid scratching, while being durable for hard use.
The .20 Caliber jags feature a 5-40 thread, compatible with Copper Eliminator rods and other rods with matching female thread patterns.