I have had this rail a few months been to the range a few times but mostly in the safe. The upper is returning to an A4 configuration so I dont need the rail. They are 329$ new from Larue plus shipping. The condition is new in my opnion no srcatches or gouge's.
I will add a YHM low profile gas block and MI quick disconect socket. I will even install it for you.
I want 300$ shipped to your door. Trades could be SOPMOD stocks any gen, or DD RIS II.
I added a pic so you can see what it may look like on an M4 barrel this is a 14.5" in the pic