A2 Post Front Tower HIGH Profile Weaver Picatinny Mount AR15 M16 M4 A1 + Tool Package Includes: Front Sight, High Profile + Sight Adjustment Tool. Precision Elevation Adjustments. Tool is Made with Extremely High Quality Finish with All Steel Construction. Tool is Made with Extremely High Quality Finish with All Steel Construction. A1 & A2 Front Sight Tool 4 & 5 Prong Compatible - AR15/M16. Weight (OZ): 1.3. Easy Installation , No Gunsmithing Required !