The X9 is a full-size Airgun pistol with a classic design. The X9 is a high quality built Airgun that features a hard blowback function that makes the Airgun look and handle just like the real thing. The realistic Blowback function makes the slide move back and load a new 4.5 steel BB into the chamber, thus adding a more realistic shooting experience. The slide locks back on the last shot, requiring you to manipulate the slide lock or the slide itself when inserting a full magazine. The magazine holds 16 4.5 steel BBs. The texturized grip allows for better pistol control and target acquisition.