BoreTech Proof Positive Pistol Jag

Bore Tech Proof Positive Pistol Jag 357 38 9mm is a patch jag designed for pistol cleaning in .357, .38 and 9 mm calibers. It is designed for use with cleaning patches when you want to remove fouling and copper residue from the bore in a controlled manner without the false copper residue indication caused by traditional brass patch jags. The brass-free Proof-Positive design helps ensure that the blue color on the cleaning patch indicates actual copper residue, not the material of the tool.

Proof-Positive Pistol Patch Jags are made from Bore Tech?s proprietary metal alloy and finished with a separate treatment process, making them 100% brass-free and safe for the bore. The material has a softness similar to brass, but with high tensile strength, helping to prevent bending and breakage even under the stress caused by a tight cleaning patch.

Traditional brass patch jags often contain more than 60% copper in their composition. When used with effective copper removers, a blue copper-residue color may appear on the cleaning patch even when there is no copper left in the bore. Removing brass components from the cleaning process helps the shooter assess the true cleanliness of the bore more accurately and reduces wasted cleaning patches, chemicals and time.

Each Proof-Positive Pistol Patch Jag is precision machined to tight tolerances to ensure reliable function and to apply even, centered pressure to the bore surface. The design supports effective cleaning and helps keep the cleaning patch correctly positioned inside the bore.

The connection between the patch jag and the cleaning rod is designed to be smooth and free of sharp edges. When used with Bore Tech Proof-Positive Bore Stix or V-Stix cleaning rods, this solution helps prevent damage to the firearm?s crown when the rod is pulled back into the bore. The smooth, edgeless transition makes cleaning more controlled and protects the firearm?s critical surfaces.

Bore Tech Proof Positive Pistol Jag 357 38 9mm - Features:

• Product type: patch jag for pistol cleaning
• Compatible calibers: .357, .38 and 9 mm
• Material: Bore Tech?s proprietary brass-free metal alloy
• Brass-free design: 100% brass free, does not cause a false copper residue indication due to the copper content of brass
• Bore safety: the material has a brass-like softness and is designed to be safe for the bore
• Strength: high tensile strength helps prevent bending and breakage with a tight cleaning patch
• Machining: precision machined to tight tolerances
• Cleaning pressure: provides even and centered pressure against the bore surface
• Connection design: smooth and edgeless transition between the patch jag and the cleaning rod
• Compatible rods: designed for use with, among others, Bore Tech Proof-Positive Bore Stix and V-Stix cleaning rods
• Thread size: 8/32
• Dimension A: 7.8 mm (0.308 inches)
• Dimension B: 50.8 mm (2.00 inches)
• Country of manufacture: USA

Summary: The Bore Tech Proof Positive Pistol Jag 357 38 9mm is a sensible choice for users who want to improve the accuracy of bore cleanliness assessment and avoid false interpretations caused by traditional brass components. Its brass-free construction, precise machining and bore-protective design make it a reliable tool for regular pistol maintenance.

Recommended use: especially suitable for cleaning the bores of .357, .38 and 9 mm pistols together with suitable cleaning patches and copper removers, when the goal is controlled, precise and bore-safe cleaning.

Product text updated on 21 July 2026.