Details, Carbine conversion kits are the latest trend for pistol owners. Umarex has taken up the idea and now offers the first expansion system for CO2 guns, the TAC·Kit. The TAC·Kit consists of a CO2-powered Umarex X·B·G, which shoots 4.5 mm steel BBs, and the TAC conversion kit. This folding stock system, made of high-strength plastic, has Picatinny rails on the fore-end for mounting accessories and an integrated compensator. In addition, a Picatinny rail with an integrated sight extends over the entire length of the receiver. The pistol can be inserted or removed by taking out a pin at the rear of the receiver, unlocking the TAC stock. In this way the shooter can choose between a rifle and a handgun. The TAC·Kit includes a folding tactical front stock grip, a compact Competition II red dot sight and 500 steel BBs. Don't forget to order your Co2 capsules and 177 BBs with this product. 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.