The most anticipated airgun sets a new benchmark for what you can expect from an airgun STX - Smooth twist X barrel Choice of three calibers Quick change barrel system AMP Regulator Precision match trigger 1/2" UNF thread carbon fiber 300cc bottle scope & mounts not included magazine capacity; .177 = 22 .22 = 18 .25 = 16 .30 = 13 You may order this gun online, however due to uk legislation, we are not permitted to ship directly to you, we can however ship to a registered firearms dealer local to you. Once we receive your order, we will contact you to arrange which registered firearms dealer you would like the gun to be shipped to.