Our Breakthrough Clean Technologies® Brass Jags are machined to specific calibers for precision fit. Each .40 caliber & 10mm brass jag is stamped with caliber #8/32 thread for attachment to Breakthrough Clean Technologies® stainless steel rods. Standard #8-32 thread (standard shotgun #5/16-27 thread on 12g). Product Features • GUN CLEANING SUPPLIES: Our brass jag helps maintain your firearm so you can shoot with consistent accuracy at the gun range. This handy accessory removes excess powder, co
