Want proof your barrel is clean? Unlike traditional brass jags that can give a 'false positive' when testing barrels for copper fouling, Bore Tech makes a proprietary heavy-duty alloy jag that has excellent tensile strength and features a special coating that seals the jag to protect it against harsh chemicals and makes it 100% barrel safe. Eliminating brass with a Proof-Positive Jag will not only give you a cleaner rifle bore, but you’ll save time and money by cutting back on wasted patches and chemicals. Proof-Positive Jags are precision machined to strict tolerances to provide true, concentric pressure on barrel surfaces. Get the best cleaning results by using Proof- Positive Jags with Bore Tech’s Bore Stix.