The Grip Pod® Single Light Rail easily attaches to any of the Grip Pod® models, allowing a rear-activating button light to be mounted to the side of the Grip Pod®, and by utilizing the operator's support thumb to activate the light, it creates the most ergonomic and efficient vertical foregrip/light combo. The Single Light Rail does away with the pressure pad phone cord problem, and also allows the user to mount a tactical light or laser via the single Picatinny rail.