AR15 upper protector

thingiverse

Do you find that the extracted .223 Rem cartridges tend to flip around and leave unsightly scratches in the upper receiver of your AR? I certainly do, and it really gets under my skin. So, I came up with a simple solution. I designed this little protector to fit snugly onto the very end of the Weaver rail, ensuring that it won't interfere with any scope mounts. Unfortunately, it won't work if you have the carry handle on your M16. After the initial version worked out well, I decided to create a black one. The original white design was great for visualization purposes, but in reality, it looked pretty terrible on the gun - as you can clearly see.