Wilson Combat

Two Shot Tactical Magazine Extension Tube with Quick Detach Sling Stud and Vertical Sling Mount, 12 Gauge. Scattergun Technologies magazine tube extensions are so tough they were selected for use by the U.S. Secret Service and the U.S. Border Patrol. Features : - Two Shot Magazine Extension Increases Magazine Capacity - Vertical Sling Mount with Quick Detach Sling Stud - Includes an Extra-Power Magazine Spring for Improved Reliability - Includes a High-Visibility Follower for Improved Feeding and Visual Reference of Empty Magazine Tube - "Fits Remington M870 " 1100 " 1187 - 12 Gauge" - Wave Washer Included - Parkerized Finish - Follower is not grooved to fit newer 870 magazine tubes.