Quote Originally Posted by louisvanhovell View Post
The front sight of the Crosman Town & Country 107/108 is another example.
Not necessary, but super cool and well made.

Photo source: Airgun Blog

Love this unique solid brass sight system. But this explanation is incorrect. The front is changed to match the rear sight you use. The lower peep sight uses the lower front sight the higher open sight uses the higher front sight. They are actually aiming at the same point. Use depends on lighting conditions or if you are target shooting or hunting?