Liberty Precision Machine Eclipse, Flash Hider, 30 Caliber, 1/2X28 Thread Pitch, Compatible with .900-24 Mounts, Nitride Finish, Black LPM-2001 Liberty is proud to announce the Eclipse Flash Hider. Important Disclaimer: Use of This Muzzle Device May Void the Warranty Policy of Some Silencer Manufacturers. Liberty Precision Machine LLC Will Not Be Held Liable for Damage to These Products. Always Confirm Alignment Before Use.