The Sig Arms CO2 Non Blowback GSR Airsoft Gun is not meant for use against live targets. The velocity on this gun is very high with 20g BBs and therefore should only be reserved for target shooting. The frame of the gun is made of plastic and the slide is made of metal. The CO2 is loaded into the pistol grip and is sealed very well, the magazine is a slender single stack magazine. This is a purpose built target shooting pistol for you to practice your draw and your aiming. Specifications: Manufacturer: Sig Arms, Magazine Capacity: 15 rounds, Package Includes: gun, magazine, manual, Due to current UK Legislation we are unable to send purchased guns/air guns or live ammunition by mail to a customer unless they are another Registered FA Dealer. You can however order this product online and choose the 'collect in person' as your shipping option and collect from our shop or please phone for more info 01603 788470, *You MUST be OVER 18 buy this product.