I have up for sale a rock river arms half quad rail and rock river arms gas block/front sight combo. The front sight is flawless as far as I can tell but the hand guard is a little ruff as you can see in the pictures. It has some marks on the delta ring(not sure the real name for this) from having it removed by a gun smith and some random marks on the rail itself. The gun these were on had about 300 to 400 rounds though it and was babied. Im looking to get $120 for the rail and $70 for the front sight or you can make me an offer and might even be interested in a trade.








