CA320 COM-XT updated verison to CA320 PRO, so diameter , SPINE and GPI is still kept same, compare with CA320, the Arrow manufacturing process is updated, it become more durable, and have the Better consistency, it's absolutely an unparalleled arrow for Olympic target shoot. CA320 COM-XTis designed for Compound bow target shooting specially, taper front design based on CAC construction Offering the competitive shooter exceptional speed and accuracy with little worry of wind drift, parallel tail enhances the durability with compound bow, it can provide the strong and stable output, it’s a true all-round performer for compound bow target shoot at any range!