Details, This new Walther rifle has a high-performance system with a piston diameter of 30 mm. This also has a form-fit and force-fit barrel locking system for constant precision with a XM trigger with adjustable first stage travel and trigger weight. Finally this has an aluminum barrel weight with ½" UNF thread for mounting a silencer! This also includes a 6 x 42 rifle scope with parallax adjustment and High-Power mount. This is firing at around 11.5ft/lbs. Don't forget to order your 177 pellets with this product. Other Accessories are available in the accessories section. You MUST be 18 or over to purchase this item. Air Weapon delivery information: Due to Government legislation we can not deliver these direct to you for free. You can either collect from us at the address below, we can transfer it to a local RFD for local collection or if you are within 100 miles of our shop (address below) we can deliver it via a representative in a face to face transaction. Please click here for our air weapon delivery page for more infomation. Please note you must be able to provide at least 2 forms of I.D for any air weapon transaction in store or delivery. When you are ready please choose which you would prefer from the drop down menu above.