The Mark 2 IMS, or Integral Mounting Systems) is designed for AR style of rifles and sets the scope both forward and higher to give proper eye alignment for scopes. The IMS mounts directly to the firearm’s Mil-Spec 1913/Picatinny rail. Of course, the IMS is also covered by Leupolds full lifetime Guarantee.
Ring Diameter: 1″
Leupold #: 110290