We’re not making fun of the original poster here — this is a joke meant to set off the gun-grabber crowd, and it worked. You know how they’re always telling us that the AR-15 is a “weapon of war,” which is strange, since we don’t equip our soldiers with them. We’ve seen them target AR-15s because the rounds travel faster through the air. We’ve seen USA TODAY show off the deadly chainsaw bayonet aftermarket attachment. And now we’re getting a close-up look at the button that turns your AR-15 from regular semi-automatic to overlapping auto: