Based in Mesa, AZ, Walker Defense Research LLC (WDR) seeks to provide American shooters with the finest, most innovative tactical accessories money can buy. At WDR, innovation is not a buzzword we throw around - it's our entire focus. Innovation is required to be at the core of every released product. As is evident by our first product, the NERO 556 muzzle brake, unconventional design and undeniable performance echoes our design philosophy. More importantly than what you make, is what you stand for. Here at WDR, we have no problem telling you exactly what that is. We are unwavering supporters of the 2nd Amendment and therefore consider it an honor to supply US shooters - whether civilian, law enforcement, or military - with highly-innovative tactical weapon accessories proudly made here in the USA. http://walkerdr.com Walker Defense Research Mesa, Arizona Instagram: https://www.instagram.com/walkerdefense/ YouTube: https://www.youtube.com/channel/UCZoRnd_jysfTLGifzW0D38g Facebook: https://www.facebook.com/walkerdefense/ Direct 602.680.3310 info@walkerdefenseresearch.com