Holosun HM3X-MICRO Magnifier 3X Compact Aluminum w/Flip&QD Mount 3x magnification;Compact, lightweight design;Flip-to-side QD mount;Absolute and lower 1/3 co-witness compatible;Eye relief: 2.6 inches;Field of view: 7 degrees;Nitrogen-purged;Fog-prooftable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 4000 Product Group Code: 4000L Product Sub Group 1: 4000L2 Inactive: No