Mix and Match color available🔥 -red lower black upper -black lower red upper -blue lower black upper -black lower blue upper -red lower blue upper -blue lower red upper -Aluminum alloy construction -Extremely lightweight skeletonized design -Ideal for competition style builds -Billet style design -Officially licensed design by F-1 Firearms with F-1 trademarks Based in the great state of Texas, F-1 Firearms has become one of the premier brands in semi-automatic sporting rifles. Utilizing premium materials and cutting edge manufacturing processes, F1 produces firearms that are lighter, stronger, more accurate and built to more demanding tolerances than their competition. F-1 Firearms are designed to stand out from the crowd, with an F-1 rifle, not only will you look better than the rest, you'll shoot better than the rest. Manufacturer: EMG / F-1 Firearms (OEM: APS) Specifications: Compatibility: APS Version 2 gearboxes Material: Aluminum alloy