The Lyman TacStar 1081158 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. Works great as a separate Shotshell Storage Caddy for Duck Blind, Boat or Hunting Cabin!