The mark consists of the three-dimensional configuration of a pistol. The mark includes the overall size and shape of the pistol and the external accents and features of the pistol. The mark includes the relative proportions of the external accents and features of the pistol. The mark includes the lines, ridges and contours along both sides of the slide, barrel, and frame indicating grooves and ridges on the surface of the pistol; the number and placement of the angular lines on the front and rear of the slide indicating serrations on the surface of the slide; the pattern on the front and rear of the hand grip indicating ridges; the surface panel shape and texture on the sides of the handgrip; the shape and location of the exterior shapes and designs on the hand grip and other portions of the pistol and the placement or position of those shapes; the shape and proportion of the barrel, and the shape, proportion, and position of the accessory rail. The following items are not claimed as features of the mark and are shown in the drawing by dotted lines: the front sight, the disassembly lever, the loaded chamber indicator on the slide, the rear sight, the slide stop lever, the grip safety, the ambidextrous magazine release, the trigger, and the magazine extending from the bottom of the frame.