Rugged Suppressors Axial. Belt Fed Rated with Coaxial Vented technology for reduced back pressure and gas blowback. Large diameter keeps overall length short. Rated for 5.56 and 7.62 belt-fed and full-auto use. Built for high-volume sustained fire. Unconditional lifetime warranty. Note: If this product is reflected as in-stock it means it's either physically in-stock or allocated and available (serial number is assigned) at my distributor