- Front Sight
- Rear Sight
- Bullet Button (installed not shown in pics yet)
- Flash Hider
I ended up purchasing an Aero Precision upper from SurplusAmmo.com. It was on sale for $50 when I bought it a few weeks ago. It's now back up to $65. I really like the American Flag logo on the top portion, however, the letters are not white as shown in the picture below. They are gray like the color of the flag. So the letters don't match the quad rail, but it looks find nonetheless.
Since I bought the upper as a "Stripped" unit, it did not come with a forward assist or a eject port cover. I bought both at Riflegear for about $30 total.
Here is the end of the ejection port hinge. This is a very delicate procedure and you have to be very careful not to crush the "C" washer.
You then feed the hinge through the ejection port cover and onto the Upper. Then, you have to attach the spring and feed all the way through. I didn't capture a picture of that here, but you can see how to do it at ITSTactical.com.
The next step was a little tougher than I thought it would be. Getting the barrel and jamb nut onto the barrel was easy. Lining up the holes so the gas tube would line up properly was a little harder than I thought.
I also installed a Yankee Hill low profile gas block and Yankee Hill blacked out gas tube.
The next step was installing the Yankee HIll Specter Length Diamond Forearm (Quad Rail)
The installation was pretty straightforward, and I put blue loctite on the free float retention screws to make sure it doesn't back out during operation.
Next was the installation of the Magpul B.A.D. Lever (Battery Assist). This is a very easy install and the lever works as expected.
Next, I installed the Charging Handle and Bolt Carrier group into the Upper Receiver.
Lastly, I installed the Completed Upper Receiver onto the Completed Lower Receiver.
And the gun is complete with the exception of the Flash Hider and Front & Rear Sights.
I'm really happy with how it turned out and can't wait to test it on the range!


