I try very hard to understand the far right, but the extreme gun people are beyond me. 

If you can buy the gun on the top, but can't buy the bottom gun, who cares? You still have a gun. 

UPDATE: Megan McArdle responded to this post at The Daily Beast. She writes, "I'd turn that question around: if it makes no difference, then why have the law? " 

UPDATE2: Media Matters says that these guns are very different. And, for the record, I didn't create this image. I found it on Facebook. I have no idea where it originated.