Spot Hogg Boonie Hard Mount Sight 1 Pin .019 LH Constructed from solid 6061 aluminum;Silent, click-free adjustments;Micro-adjustable 2nd and 3rd axis;Tool-less adjustment;HRD Technology ensures a solid, buzz-free mount;Compatible with all Spot Hogg heads as of 2024;Quick disconnect feature;Available in .010?, .019?, and .029? pin sizes;Direct mount styletable.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