We now know that the AR-15, a combat weapon not designed for hunting or personal defense, was the weapon used in the tragic Sandy Hook killings.

What may be surprising to many is that the mega-retailer Wal-Mart has been selling this weapon to its general customer base. Shortly after the shooting, Wal-MartAi??quietly pulledAi??the AR-15 off of its site, leaving the actual purchase page with an error message but customer reviews still standing.

Here’s theAi??review page where customers give the rifle a 94 percent rating:

The Nation’s George Zornick has a lengthy articleAi??in The Nation that lays out how Wal-Mart helped proliferate the AR-15 and make it one of the most popular assault weapons in America. Tellingly, the chain declined to comment on the story.

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