There’s a damn good reason why we keep harping on 3D printing as the biggest thing to happen to firearms design since the CNC machine became cheap enough to put in every machine shop in America — namely, that cool stuff like this is now possible. This is a prototype (found on Reddit last night) of an AR-15 receiver with a P-90 style stock called the Charon. 3D printing means that anyone with an idea can make their dream happen, even if it’s in the form of this unholy union.
UPDATE: Want to print it yourself? Here are the files. How about if you want to improve it? Download the source files and edit to your heart’s content.