Walker Defense Research, the maker of the NERO 556, is now teasing new 7.62 and 9mm versions of the muzzle device. The NERO is noteworthy for its thoroughly modern approach to design and manufacturing, leveraging fluid modeling in design and 3D printed Inconel construction, as well as its performance.
The new NERO 762 and NERO 9 are not yet available to purchase but their product pages are active on the Walker Defense Research website. These are not just scaled versions of the original NERO 556. They are modeled and built specifically for each caliber.