As Wallace said when he first spied the wrong trousers, now that IS clever. LEO TakeDown CEO Lance Maffett has designed an attachment system that allows rifle owners to change barrels in the blink of an eye. Or carry an AR-15 in a handy little pouch and deploy it within seconds. Mr. Maffett reckons his two rings (or more) to rule them all product line will hit the market in the next couple of months for around $300 per set. Full review to follow.