CAT Outdoors Noah (Inconel, Spooky 1 QD mount). AI-engineered 6mm suppressor optimized for 6 ARC and 5.56 NATO using Surge Bypass technology. 6.50" length, 19.3 oz (Inconel). 1.60" diameter. Min barrel 8" (Inconel for 5.56 NATO). Velocity range 1000-2800 ft/s. Semi-auto rated. DLC finish. 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