Board Thread:Suggestions/@comment-31780004-20180608182506/@comment-31719011-20180608190920

You mean a Choke?

Because there's multiple types of Chokes

Cylinder Choke/No Choke

Skeet 1

Improved Cylinder Choke

Skeet 2

Modified Choke

Improved modified Choke

Full Choke

Extra Full Choke

Turkey Choke

You have plenty of Choke option.