Here is a link to the barrel shroud I bought: http://www.kineti-tech.com/barrel-shrouds-2/ It's well made and replaces the flasher hider and sit a little under the handguard to give it that "SD" look. But it only work if you have the threaded barrel, (already has flash hider installed) As said above, almost all external accessories for the AR15 will work with the 15-22. And I can attest it has a healthy appetite for ammo :)