TacStars SideSaddle mounts extra rounds on your shotgun in a convenient and accessible location for fast reloading. The polymer shell carrier is attached to an aluminum mounting plate that installs directly on the shotgun receiver. All mounting screws are included no gunsmithing required. Note some field grade shotguns may require a modification to the shotguns forend. Shotguns using the TacStar pistol grip forend do not require modification.