SR25 AEG Shell

*******THIS IS THE ORIGINAL MODEL, USE THE NEW MODEL!!!!! https://www.thingiverse.com/thing:3013661 ******** (unless you want the base designs)

*Updated 6/21: Added new .stl's from Fusion 360 which should be more exact, I left the original there, but the new file is "Base Shell" and "Ridged Shell"

*Updated 6/27: Fixed issues in shell body in the model itself after test printing a shell. The base design does fit into a magwell, if a little tight, which has "hopfully" been fixed in the updat