Bore Tech Shotgun Blend Bore Cleaner 4 Oz. It uses an exclusive blend of surfactants penetrants and releasing agents to penetrate and lift lead and plastic wad fouling off of the barrel's surface. Specifications for Bore Tech BTCN-20004 Shotgun Blend Bore Cleaner 4 Oz: Mfg Item Num: BTCN-20004 Supplier SKU: 40123 Category: CLEANING AND RESTORATION Type: Bore Cleaner Size: 4 oz Quantity: 1 Bottle The Bore Tech BTCN-20004 Shotgun Blend Bore Cleaner 4 Oz is a quality addition to the Bore Tech lineup. For more great deals on Gun Cleaning Solvents by Bore Tech please browse our Bore Tech Gun Cleaning Kits page.