This at one time was a complete Colt A2 Sporter. Previous owner put on a flat top of unknown make and cut down the front sight. Standard front sight put back. The lower is (not for sale or trade), the barrel is marked "C MP 5.56 NATO 1/7" Unknown round count. Front/bottom grip took some trimming to fit, that's why it looks rough. Flash hider needs a new crush washer to index properly, only on hand tight. Unknown rounds put through it.
Will sale upper $565 shipped. PP accepted as gift + 4%
If buying this then BCG/CH can be had at $275, otherwise will not separate