The Radian Vertex Trigger Group is an extension of the line of rifle upgrades from Radian Weapons. Radian is known to design and manufacture the most innovative, professional-grade firearms and components on Earth. They focused on building top-tier, battle-proven products - and have done that by implementing stringent unrelenting quality standards. With the Vertex trigger you can always expect sub-MOA accuracy, precise quality, and ambidextrous ergonomics. Professional-grade, worry-free performance, right out of the box.