Defender Suppressor – Direct Mount SeriesCal: .308/300AACOuter Tube – 304L StainlessMonocore Baffle – 17-4 StainlessFront Cap – 304L StainlessThread – Direct – 5/8-24Cerakote CoatingLaser EngravedMPA Texturing on Outer TubeDB Rating – 139 db (10 Shot weighted average using NI Labview Software & Gras 1/4″ Mics1.5″ Diameter9.25″ Length23 ozWelded Construction