In the photo below, we see three Colt LE901 lower receivers that are in three different levels of completion.
The front (silver appearance) is the raw forging for the LE901.
The middle lower receiver (satin appearance) is an 80% lower that has had the initial surface finish done.
Then, obviously the back is the completed lower on a rifle.
A special thanks to the Arms Unlimited team for making the ownership of the LE901-16S possible and my friend Alex for hooking me up with the raw forging and the 80% lower.