HUXWRX Flash Hider-QD Features The HUXWRX Flash Hider-QD 556 is designed specifically to reduce muzzle flash when the host rifle is being fired without a suppressor attached a key consideration for shooters who move between suppressed and unsuppressed fire. Its 5/8x24 thread pitch is matched to 5.56 NATO rifles and it is not compatible with barrels threaded 1/2x28 so builders need to confirm thread compatibility before purchase. Once installed the device adds 2.3 inches of muzzle device length and roughly 1.7 inches to the overall barrel length on a barrel with 0.6 inch of exposed threads. That added length is a factor to plan for when calculating a build s final legal barrel length. This flash hider is built to work with HUXWRX s HX-QD series including the 556k 556 762 762 Ti and Magnum Ti suppressors as well as the FLOW series including the 556k 556 Ti 6k and 762 Ti models. Smaller caliber mounts like this 5.56 unit are compatible with larger caliber suppressors though larger caliber mounts are not compatible with smaller caliber cans so matching the correct mount to the suppressor is important. With the addition of the HUX HUB Adapter this flash hider also becomes compatible with VENTUM series suppressors extending its usefulness across HUXWRX s broader suppressor lineup. Finished in black the Flash Hider-QD gives HUXWRX suppressor owners a dedicated quick detach mounting solution. HUXWRX Flash Hider-QD Specifications Manufacturer: HUXWRX Safety Co. Model: Flash Hider-QD Type: Flash Hider Caliber: 5.56 NATO Color: Black Thread Pattern: 5/8x24 Compatible Hosts: HX-QD Series FLOW Series Suppressors Available At: GrabAGun