- The Streamlined Design With QD Mount Ensures ¼ MOA Re-Mount Capability And Allows For Use Of Back Up Iron Sights While Maintaining Proper Eye-Relief. Available In 30, 34 And 35-mm Options With Burris’ Signature Polymer Ring Inserts, It Provides Adjustment From 5 To 40 MOA Without Using Windage/Elevation Knobs.