You can find the Samson AC-556 Style Gas Block Front Sight 2008+ Black here Fast $9.95 shipping! Orders over $200 ship for free!

The Samson AC-556 Style Gas Block Front Sight is a reengineered version of the original AC-556 style gas block and front sight with integrated sling attachment point.

Firearms: Ruger Mini-14's with a factory flanged .625" diameter barrel manufactured in 2008 or later, with a serial number prefix of 508 or higher and Mini Thirty rifles with the older factory straight pencil .625" diameter barrel and the new factory flanged .625" diameter barrel.
Color: Black