The Kelley Offset Sight (K.O.S.) is patterned from the Goodwin style Creedmoor sight with the staff off center to the axis of the barrel. This design gives easy access to the breach without moving the sight. This is especially helpful to those who like to clean between shots.

Kelley K.O.S. Sights

K.O.S. Long Range Sight

K.O.S. Mid Range Sight

K.O.S. Short Range Sight