The X-Calibur is our well-known, out-of-the-box competition-ready, flagship. We offer to tow new modifications to further accommodate to needs of our customers, who asked for heavier versions as well as for the option to mount a red dot sight, in order to allow them to use their favorite X-Calibur for more and more disciplines in shooting sport. There are two new options available – Match and Match CO, standing for carrying Optics. They both possess an additional weight of 350g in form of a massive steel dust cover, including a standard Picatinny rail for any accessories shooter may want to attach to his X-Calibur. Additionally, the CO version slide is milled to accept a mounting base for a red dot sight. The red dot mount base can be replaced by micrometric rear sight if needed.