Choate Tool S&W 1000/3000-7 Shot Magazine Extension Matte. 7 shot magazine extension. Increase your fire power by 2 shells with our shotgun magazine extension kits. fits the 18 inch or longer barrel. These extensions are great for law enforcement officers and competition shooters in reducing the time to reload. They are also a must for home protection. Made of steel construction. Comes with magazine tune sling swivel barrel clamp and heavy long spring. Does not come with shell follower. Matte Specifications for Choate Tool S&W 1000/3000 Magazine Extension Matte: Manufacturer: Choate Tool Condition: New Country of Origin: USA Features of Choate Tool S&W 1000/3000 Magazine Extension Matte Adds +2 shotshells machined from steel includes spring and clamp Package Contents: Choate Tool S&W 1000/3000 Magazine Extension Matte Choate Tool CMT-05-04-02: S&W 1000/3000-7 Shot Magazine Extension Matte