Heresy Design 16.3 inches Aug - precision Redefined The Heresy Design 16.3 inches Aug is a masterpiece of engineering, crafted for those who demand unparalleled performance and versatility. This advanced firearm allows owners to effortlessly switch between calibers, providing the flexibility to adapt to various shooting scenarios. Whether you're using standard or subsonic ammunition, the Aug ensures optimal performance with minimal gas blowback, even when shooting suppressed. Each unit ships with a meticulously designed barrel assembly, ensuring you have everything you need for a seamless shooting experience. Elevate your shooting capabilities with the Heresy Design 16.3 inches Aug - where precision meets innovation. Barrel with 5/8-24 threading Compatible with standard and NATO inventories Installation without modifications Enhanced gas piston system Gas port length for subsonic pistol operation Suppressor-ready, three-setting adjustable gas system Anodized aluminum quad rails with thermal isolators Wear components with Isonite coating Limited lifetime warranty