Up for sale is a carbine length Daniel Defense LiteRail along with a set of GG&G back up iron sights, all in excellent condition. The Daniel Defense LiteRail is lightweight and locks up solidly with the upper receiver to allow for a free floated barrel. The flip up iron sights are lightweight and have a low profile making them a good set if you plan on running optics. The front sight also acts as the gas block and comes with carbine length gas tube installed. I'm asking $400 for the set.