HHA Optimizer Lite X Sight 5519 .019 RH Compatible with HHA lens kits and HHA Blue Burst 2500 light;Scope Housing: 1-5/8"";Mico windage adjustments left to right;Elevation adjustments can be made and locked down on the sight tape from 20 to 80 yards in single yard increments;Pin size: .019table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; } Item Category Code: 1900 Product Group Code: 1900A Product Sub Group 1: 1900A1 Inactive: No