Designed and engineered in the U.S.A. Delivers repeatable micrometer sight adjustments allows user to rotate front and rear sight for shooting in cant position compatible with 11mm dovetailed receiver comes with non-shooting eye blinder that attaches to rear sight windage and elevation click value 1/4 MOA (when front and rear sight are 27" apart) +/- 25 MOA elevation adjustment +/- 12 MOA windage adjustment W/E clockwise rotation moves point of impact right, or up W/E counter-clockwise rotation moves point of impact left, or down 10 clicks per rotation includes: fixed sight blades and rotatable sight blades (sizes 3.8mm, 4.0mm, 4.2mm and 4.4mm). Features: - Rear diopter sight and hooded front sight - Designed and Engineered in the U.S.A. - Delivers repeatable micrometer sight adjustments - Allows user to rotate front and rear sight for shooting in cant position - Compatible with 11mm dovetailed receiver - Comes with non-shooting eye blinder that attaches to rear sight Includes: - (4) Fixed sight blades - (4) rotatable sight blades (sizes 3.8mm, 4.0mm, 4.2mm, & 4.4mm) Specifications: - Compatible with: 11mm dovetailed receiver - Windage and elevation click value 1/4 MOA (when front and rear sight are 27" apart) - +/- 25 MOA elevation adjustment - +/- 12 MOA windage adjustment - W/E clockwise rotation moves point of impact right, or up - W/E counter-clockwise rotation moves point of impact left, or down - 10 clicks per rotation