Otter Creek Labs OTB Features The OTB is machined from steel and finished in black nitride a surface treatment that significantly enhances surface hardness and corrosion resistance while providing a clean non-reflective black appearance that integrates naturally with standard rifle and suppressor configurations across a wide range of host platforms. Steel construction ensures the OTB maintains its thread engagement and muzzle device geometry through the repeated thermal cycling and high-pressure gas exposure that flash hiders endure during high-volume use and the black nitride finish adds an additional layer of protection that extends the service life of the component across all operating conditions. The 1/2x28 thread pitch provides broad host compatibility across the most widely adopted pistol and rifle muzzle thread standard in use today. As a dedicated Otter Creek Labs flash hider the OTB is engineered to provide the correct mechanical interface for compatible Otter Creek Labs suppressor mounting systems ensuring proper alignment and secure lockup when a compatible suppressor is installed on the host firearm. The flash hider geometry delivers effective muzzle flash reduction during unsuppressed use maintaining low visual signature at the muzzle and preserving the shooter s night vision and situational awareness during low-light firing conditions. For any Otter Creek Labs suppressor owner running a 1/2x28-threaded host the OTB is the purpose-built black nitride steel flash hider that completes the suppressor mounting system. Otter Creek Labs OTB Specifications Manufacturer: Otter Creek Labs Model: OTB Category: Suppressor Accessory Series: Flash Hider Thread Pattern: 1/2x28 Material: Steel Finish: Black Nitride Color: Black Nitride