The Obsidian45 is the quietest 45 suppressor on the market and is rated for practically all center-fire pistol calibers, along with common lever action calibers. Our ADAPT(TM) Module gives you 2 lengths in one suppressor, for ultimate versatility. Caliber Ratings Belt Fed Rated for Pistol Calibers up-to 45ACP 300BLK Subsonic (with an 8a ^2 barrel) 350 Legend (with a 16a ^2 barrel or longer) 450 Bushmaster (with a 16a ^2 barrel or longer) ADAPT(TM) Modular Technology Now you don't have to choose between a short suppressor and a long one. ADAPT(TM) Modular Technology allows the Obsidian45 to have two configurations, so that you can have a shorter and lighter suppressor in seconds compared to months. Keyed Baffles Obsidian45 baffles are machined from 17-4 Stainless Steel barstock, with two indexing tabs for proper alignment. With serviceability in mind the Obsidian baffles create a gas seal that virtually eliminates carbon build up between the baffles and tube. Non-slotted Piston The Obsidian9/45 uses a non-slotted design creating a full circumference gas seal. This drastically lowers gas blowback for a more enjoyable shooting experience. Obsidian9/45 pistons are cross compatible with SilencerCo(TM) slotted pistons. Revolutionary Mounting System The Obsidian45 mount is machined from 17-4 Stainless Steel barstock. We strategically place the engraving on the thickest cross section of the 17-4 Stainless Steel Mount for fast and easy replacement should the suppressor become damaged beyond repair. It also serves to make the Obsidian45 infinitely upgradeable in the future. Parts Compatibility Already a proud owner of an Obsidian9(TM)? The Obsidian45 is fully compatible with Obsidian9 accessories. Pistons, Fixed Mounts, Fixed Barrel Spacers, and 3 Lug Mounts are interchangeable with the Obsidian45. Belt Fed RatedA(R) The Obsidian45 is machined from top of the line materials to not only last a lifetime, but withstand any rate of fire. Because we believe your gear shouldn't be what's holding you back. Specifications Diameter: 1.37a ^2 Length: Standard Configuration: 8.6a ^2, Short Configuration: 6.7a ^2 Weight: Standard Configuration: 12.8oz; Short Configuration: 10.7oz Materials Baffles: 17-4 Stainless Steel Tube: Hard Coat Anodized Aluminum Mount: 17-4 Stainless Steel Finish: High Temp CerakoteA(R) (Black or FDE) Additional Features -Removable Front Caps -9mm Front Caps available -Pistons work as a Front Cap Tool Sound Levels 45ACP - Full Configuration: 129.3dB 45ACP - K Configuration: 137.6dB 45ACP - K Configuration (wet): 131.5dB 9mm - Full Configuration: 123.7dB 9mm - K Configuration: 130.4dB 9mm - K Configuration (wet): 125.9dB Includes .578A-28 piston 45ACP Front Cap Obsidian45 Suppressor ADAPT Module Operator's Manual Obsidian Logo Sticker