Brand New , Official Ultimate Arms Gear Tactical Combo Combination Package Kit Set Precision Machined Aluminum Black Post Low Profile Front & Rear Iron Sight Tower Flat Top with Elevation Wind Adjustment Built in Integral Weaver – Picatinny Mount Deck “QD” Quick Detach Detachable Removable Simple Retention Thumbnut Locking AR15 AR-15 M16 M4 M-4 Flattop A1 A2. Package Includes – Low Profile Front & Rear Sight (Rests on Flat-Top Weaver Picatinny Rail System). Precision Machined with Maximum Strength. Precision Elevation Adjustments. “QD” Quick Detach Detachable Removable Simple Retention Thumbnut Locking. Easy Installation , No Gunsmithing Required !