The NLX556 GFK Complete Lower Whether you are looking for a solid base for an existing upper, or the start of your next build, Next Level Armament has come up with this complete lower receiver assembly that is designed for you. Built on our NLX556 forged lower receiver, we make each complete lower with the same components as our base model GFK rifle. Just like the complete GFK rifle, the included upgrades eliminate the need to purchase multiple additional accessories. Our goal is to manufacture a high quality, yet affordable base for your next rifle. The complete lower assembly includes: NLX556 Forged Lower receiver Oversize trigger guard Standard ambidextrous safety B5 grip B5 Bravo stock Mil-spec trigger