Tactical Metal MBUS PRO Flip-Up Front & Rear Sight Set for M4 AR15 20mm Picatinny RIS /RAS Rail Hunting

Use for M4 AR15 20mm Picatinny RIS /RAS Rai The front sight is not adjustable Once your products shipped, you can ask us offer you the tracking number. We are not responsible for any custom tax or import tax if anyone of these occurred should be paid by the buyer..syi