WEIGHT 4.8oz / 136g-8.9oz / 252g with included booster assembly - CALIBER 9mm 22 LR 17 HMR 5.7 300 BO Subsonic & Supersonic 350 Legend - MATERIALS Suppressor: Grade 5 Titanium Booster Assembly: 17-4 Heat Treated Stainless Steel & 7075-T6 Aluminun - COATINGS Suppressor: C-Series CerakoteMatte Black (Flat Dark Earth available) Booster Assembly: DLC/Black Nitride - MOUNTS Ships with � � 28 booster assembly; 3-LUG HUB stiction and direct thread adapters available. - BARREL LENGTH No restrictions - DURABILITY Full-auto rated for 300 BO. - MAINTENANCE Detailed cleaning should be performed every 2000 rounds. - TECHNOLOGY READINESS TR Level 9 Fully developed in production.