Griffin Armament MK1PATROLBLK: Griffin\'s MK1 rifles are accurate, reliable, and has all the features you need and nothing you don\'t. It commonly shoots under 1 MOA with the equipped 416 stainless steel barrel. Silencer mounts, and micro sights comes as standard equipment. The Griffin Low Pro Rigid rail provides a sleek yet immensely strong forend. An ambidextrous charging handle and selector sets finish the mil-sepc forged upper and lower receivers. A beautifully machined E-BCG is at the heart of this rifle.