This is a Savage 187/87 odd ball. We had these made up for the few guns that were made with the 17 7/8" outside magazine tube. If yours measures 17 7/8" - this is the inside tube you need. It will also fit the 887 and 987 models as well as the Stevens 46. These are made with a steel follower for durability instead of the plastic followers they originally had. The early standard length can be found here and the late model here.
