Wilson Combat Spring and Follower Kit, Extension Tube, 12 Gauge, SGSFK-EX

Extra-Power Magazine Spring for Improved ReliabilityHigh-Visibility Follower for Improved Feeding and Visual Reference of Empty Magazine TubeFor Use with 2 Shot Extension Tube or Remington 3 Shot Extension Tube Fits Remington M870 ; 1100 ; 1187 - 12 Gauge;