This is one of the LW piston uppers from the group buy with the optional rail. It has about 200 rounds through it and comes with the bolt and charge handle. It is in new condition. No wait for this one, ready to ship. Paypal add 3 percent. This upper is a good as it gets and the gun runs supper clean. www.Leitner-Wise.com for more info on this great upper.
I am adding thos comment because of all the e-mails I have received asking questions about it. I sold the upper to reduce some debt and in addition, I didn't have the SBR lower anymore. The upper kicks ass and I wouldn't buy any other upper. The bolt group is one of the best I have seen made too. If you are thinking about getting one, do it.