Rock River Arms LAR-47 The marriage of the AR with AK seems to finally be in a mass produced form. Knights Armament had designed an AR using AK magazines called the SR-47 but never sold it to the public. Micheal’s Machines had the AR-47 lower but I’m not sure they make those anymore either. The LAR-47 uses a unique lower and upper in order to use both steel and polymer AK magazines. No estimated release date set but seems RRA is taking pre-orders. Could arrive the end of the year or more likely next year.