Posted on: 2011-03-17 20:23:00 -0400

The Centurion C4 sights are slightly shorter than the standard AR-15 sights for which the LaRue Aimpoint T-1 tall (LT660) mount is designed to provide a lower-thirds co-witness. Hence, it’s impossible to get a sight picture with the irons when mounting this combination. I’ll get in touch with LaRue to get a lower mount.