The GEMTECH Lunar-45 is the culmination of decades of silencer innovation. Making it the lightest and quietest modular 45 caliber silencer available. The Lunar-45 is crafted from military grade aluminum and titanium to provide the utmost in durability and strength. .578-28 threads Matte Black Cerakote with Reduced Visual-IR Signature finish Military grade aluminum and titanium construction Can be disassembled for cleaning GEMTECH offers a variety of mounting options for the Lunar-45 allowing it to be used on a variety of platforms and calibers. Mfg: Gemtech