Bore Tech Proof-Positive Jag Features The Proof-Positive Jag is designed to eliminate the common issues associated with traditional brass jags. The .22 caliber cleaning jag uses a specialized alloy that prevents false copper fouling indications giving shooters a true reading when cleaning their barrel. Its protective coating resists harsh chemicals ensuring long-term durability and safe use with a wide range of cleaning solvents. Precision machining ensures optimal contact and performance during use. The jag is manufactured to strict tolerances providing consistent concentric pressure against the bore for effective cleaning. This design helps reduce wasted patches and cleaning time making it a practical and efficient tool for maintaining rifle accuracy. Bore Tech Proof-Positive Jag Specifications Manufacturer: Bore Tech Model: Proof-Positive Jag Caliber: .22 Caliber Application: Centerfire Thread Pattern: 8-32 Male Material: Proprietary Alloy with Protective Coating