Chamber Chiller have announced the immediate availability of their new American-made Chamber Chiller BA USB series of Bolt-Action rifle barrel coolers. Available in short- and long-action multi-caliber profiles in an assortment of colors, the Chamber Chiller BA USB series subtracts the attached AA battery compartment and instead offers a USB cable for convenient connection into most third-party 5V USB power packs. Also announced with this release is our new ultra-durable canted chamber nozzle, available in either left- or right-hand orientation.