The WE Luger 4-inch Gas Pistol is a wonderful replica of this classic German gun. The entire gun, other than the grip, is metal and features a function slide and safety. The magazine can not be seated entirely unless the slide is locked back, nor can it be removed unless the slide is locked back. WE put a lot of detailed work into this pistol. If you are looking for a WWI or WWII German load-out then this is the pistol for you.