Heckler & Koch HK MR556A4 16″ 5.56 MLOK Upper Rece Listing ID: 3077666

New Heckler & Koch HK MR556A4 16″ 5.56 MLOK Upper Receiver Group. Comes as pictured with case, manuals and also the HK Buffer and Spring. NO TRADES. Let me know if you have any questions. Can meet anywhere in the New Braunfels area. Feel free to reach out if you have any questionstwo zero$8 2/:8 four seven 8@eight 8