WHICH IS WHY GEEKS LOVE IT: The AR-15 Is More Than a Gun. It’s a Gadget.

Preppers, militia types, and SEAL Team 6 wannabes are certainly represented in the AR-15′s customer base. But fringe groups don’t adequately explain the roughly 5 million “black rifles” (as fans of the gun tend to call it) that are now in the hands of the public. No, the real secret to the AR-15′s incredible success is that this rifle is the “personal computer” of the gun world.

In the past two decades, the AR-15 has evolved into an open, modular gun platform that’s infinitely hackable and accessorizable. With only a few simple tools and no gunsmithing expertise, an AR-15 can be heavily modified, or even assembled from scratch, from widely available parts to suit the fancy and fantasy of each individual user. In this respect, the AR-15 is the world’s first “maker” gun, and this is why its appeal extends well beyond the military enthusiasts that many anti-gun types presume make up its core demographic.

Indeed.