Also have to say, for what seems like a small operation, KTK Sales has GREAT prices, and a low $4 flat rate shipping, which was also fairly quick. The Rail was $75 and the Anderson stripped upper was $45, for a total of $124 shipped! The item was not in stock, but they still got it shipped out in just a couple days. http://ktksales.com/
One thing though. They shipped the items in their actual boxes, and taped them together. No outer packaging. Which accounts for the low shipping cost. A little weird, but it worked out fine. I think they should reasses that.
If you have an issue with that, I suggest contacting them They were quick to respond to e-mail, I did not try their phone number.
Here are a couple of pictures of it mounted. I added some NC Star(yea, I know) keymod covers and I really like the feel and look. Not sure how durable they are though.
Good buying experience- Trinity Force Triangular Keymod FF Rail.