The BSTX 20 Caliber 40" Cleaning Rod is specifically designed for maintaining 20 caliber rifles with its optimal 40-inch length for thorough barrel cleaning.BSTX 20 Caliber 40" Rifle Cleaning Rod (SKU: BSTX-2040-00)Designed specifically for 20 caliber firearms40-inch length provides full barrel reachProfessional-grade rifle cleaning equipmentUPC: 667739920407Essential for proper firearm maintenance and accuracy this cleaning rod ensures thorough cleaning of your 20 caliber rifle barrel for optimal performance and longevity.