The Firefield FF34066 is a Verge M-LOK 12 Rail that\'s specifically designed to be used with the AR-15 platform. With its skeletonized design and hard anodized aluminum framework, it offers an impressive combination of lightweight handling and resilient durability. This contributes to a slim, low-profile rifle design that\'s both appealing and functional.Further enhancing its utility, this rail system is compatible with all M-LOK accessories. As part of the package, you\'ll also receive a 7 slot M-LOK rail piece and hex key.