I caught this the last minute just before the show closed. To build a better “master key”, Crye Precision hired an engineer who used to work at Magpul and AAC to create this 6 shot double action revolver shotgun. With a weight of about 3lb, this shotgun is pretty light and can be attached directly to the underside rail of an AR15. In place of the rail, a stock adaptor can also be attached to make it into standalone system. The final product will have a nylon cylinder with steel inserts, instead of the 3D print displayed in the show. There is no price published yet, but it is estimated that it will be available at the end of the year to LE/Mil, and sometime in 2015 for the commercial market.