The FOSSA-556 (see the previous review) is now compatible with the Gemtech HALO suppressor. White Sound Defense tweaked its dimension very slightly. It is now VERY slightly longer in overall length but it sits back further on the barrel so the new version actually reduces the overall length of the host versus the previous version.
The leading edge has also been mildly reshaped to make it more effective at breaking glass which may be useful for some users.
Thankfully, the performance hasn’t changed a bit. It is still offers an incredible level of flash suppression with a side of muzzle control.
Check out the White Sound Defense FOSSA-556.