The patented TacStar Sidesaddle mounts 6 extra rounds on your shotgun in a convenient and accessible location for fast reloading. The tough, weatherproof shell carrier is attached to an aluminum mounting plate that installs directly on the shotgun receiver. All mounting screws are included, no gunsmithing required. Installation is easy, and in most cases requires no alterations to the shotgun. Please note: some field grade shotguns may require a modification to the shotgun's forend as the forend will be too long and will contact the sidesaddle, affecting functionality. If you do not wish to modify the forend, we recommend the Tacstar 4-Shot Sidesaddle. Shotguns using the TacStar pistol grip forend do not require modification. 12 Gauge only..