The TBAC MAGNUS-K-SR-30 is the quietest .30 cal suppressor on the market. The K-length at 5.5 inches is best for hunting and PRS. 100% titanium construction with 360-degree fully-welded baffle core. Magnum rated with rock-solid POI repeatability. Features the patented SR mount with secondary retention for hard-use/full-auto applications. Ionbond DLC coating on SR brake. Conical shoulder mount surface for precision accuracy and repeatability. 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