LaserMax's LMS-3XD is a precision engineered laser aiming device designed to fit inside Springfield XD Sub-Compact pistols. Easily user installed in minutes, the LMS-3XD laser sighting system consists of a replacement guide rod/spring assembly and a modified takedown lever. The sight comes with permanently set alignment and guaranteed center of mass accuracy. Weighing in at 20.5 ounces, the Springfield XD Sub-Compact pistol packs either 10+1 rounds of 9mm or 9+1 rounds of .40 S'W into a very small package. With dozens of features and an overall size of 6.26 inches in length and 4.55 inches high, the XD Sub-Compact is built for concealed carry.