Not everyone is a firm believer in carbon fiber barrels. Some people are more conservative and they prefer a traditional stainless steel barrel. For this reason we designed the CDX-R7 SPTR, a variant equipped with a sporter profiled stainless barrel. We added some longitudinal flutes for weight reduction, faster cooling and nicer look. The CDX-R7 SPTR shares the same features as the CDX-R7 CRBN except the barrel type, which makes it more affordable.