Jag, 40j Fits 10mm/.40 Caliber

The Dewey Jag, 40j Fits 10mm/.40 Caliber is a precision cleaning accessory engineered for law enforcement, military, and civilian shooters who demand reliability and accuracy from their firearms maintenance routine. This chamber jag is purpose-built to support proper bore cleaning protocols for both 10mm and .40 caliber handguns, ensuring consistent results across platform variants. Whether you operate a Glock 22/23, S&W M&P .40, or any duty-grade 10mm platform, this jag integrates seamlessly into your existing cleaning rod system.

Manufactured by Dewey, an industry standard for bore care components, the 40j jag features precise dimensional tolerancing that matches chamber geometry without inducing bore friction or copper fouling. The jag design allows cleaning patches to wrap securely around the tip while maintaining enough clearance to avoid contact with lands and grooves, protecting rifling integrity during extended field operations. At just 0.03 lbs, it adds negligible weight to your cleaning kit while delivering professional-grade performance that matches what you'll find in armory-level maintenance programs.

Combat shooters and tactical operators benefit most from dedicated chamber jags designed for dual-caliber compatibility, as it eliminates the need to carry multiple cleaning tools for similar cartridge families. Installation is straightforward—simply attach the 40j to your cleaning rod and proceed with standard solvent and patch cycles to remove powder residue, primer compounds, and carbon buildup. This jag pairs effectively with standard .22, .27, or .30 caliber cleaning rods and works across fixed and modular rod systems used in military and law enforcement environments.