The Extended MSR Mount offers 20 MOA built-in slope for long-range precision shooting. This allows additional elevation adjustment in your optic when shooting at ranges over 600 yards. The Mount is CNC precision machined from 6061 aluminum and lighter than comparable mounts because of the skeletonized design. It provides an additional inch of forward cantilever, providing proper eye relief when using scopes with larger eyeboxes, and allows for mounting space behind for accessories like a 45Adeg adapter. 20 MOA slope for long-range shooting CNC precision-machined from 6061 aluminum Skeletonized design reduces weight by 30% Provides 1" of forward cantilever for proper eye relief Made in USA Order today!