Hours Of Operations CRG Maryland Upper Marlboro 20774 CRG Hours of Operation and Location in Upper Marlboro, MD 20774 4.0 - 20 votes 1300 Mercantile Ln, #126j, Upper Marlboro, MD 20774 (301) 792-5636 Get Directions CRG Hours Category: Electronics Hours Hours may vary due to season or holiday reasons. For specific hours, please contact store directly. Map Explore Upper MarlboroView More Apparel Ross Dress for LessCarter'sFoot LockerVisionworksDress Barn Sports TargetLA FitnessColemanFootaction USASports Authority Sporting Goods Jewelry Kay JewelersAvon Recommend For You S & S Connections Solutions Incorporated Technology Solutions A & P Food Store Arc Basket Shop Carpet & Rug Cleaning Carpet Cleaning USA Carpet Concepts Convenience Store