Choate Tool Mossberg 7 Shot Extension Matte Finish +2 Rounds12 Gauge. These Magazine Extensions by Choate Tool add two extra rounds to your existing magazine ensuring a consistent reliable feed during each and every shot. The reliable steel construction ensures this Choate Tool Mossberg 7 Shot Extension Matte Finish +2 RB Shells lasts through hundreds of rounds saving you ammunition on reloads. Also these kits contain a magazine extension magazine tube spring high visibility shell follower and clamp which ensures you have everything you need to easily install this magazine extension. Widen your ammunition carrying capacity and pump up your shot performance by using this Choate Tool Mossberg 7 Shot Extension Kit. Specifications for Choate Tool Mossberg 7 Shot Extension Matte Finish +2 Rounds: Manufacturer: Choate Tool Finish: Matte Magazine Capacity: 7 Round Country of Origin: USA Features of Choate Tool Mossberg 7 Shot Extension Matte Finish +2 Rounds plus 2 shells steel construction. Includes mag extension mag tube spring High Visibility Shell Follower and clamp. Package Contents: Choate Tool Mossberg 7 Shot Extension Matte Finish +2 Rounds Choate Tool CMT-02-04-07: Mossberg 7 Shot Extension Matte Finish +2 Rounds12 Gauge