I am looking to sell my piston driven Bushmaster Upper. It is a COMPLETE upper with rails and backup iron sights. I used this on my primary rifle for a bit and it has seen lots of use in a variety of environments, but it has been cleaned thorough after each use. It has been painted with Krylon paint over the years so it may look a bit ratty. I do not want to take the paint off, so I am selling it AS IS. The upper functioned very well for me over the past 5 years. It has been sitting in my closet for a while, I just want it to go to a good home. $350 OBO Please contact me if you are interested.