The lightest, purpose-built, no compromise, production ultralight survival carbine just got better At only 3.8 pounds and chambered to shoot full-powered Mil-Spec 5.56 NATO ammunition, this featherweight champion just got better with newly improved components! It took years in R&D, engineering and multiple US Patents to create the most robust and reliable lightweight AR platform on the market. Building something that is not only lightweight but all the while not sacrificing strength and performance is the ultimate secret of the BATTLEARMS® OIP®. Every component, shy of a few detents and springs, are custom built and designed to work together as a complete system.