F-1 Firearms UX-9 Skeletonized 9MM Upper Receiver

Features: Skeletonized design milled out unnecessary surfaces for lightest reliable configuration Scalloped top Mil-Spec Picatinny rail Made in the U.S.A Specifications: Material:  7075 Billet Aluminum Finish:  Type III Class 2 Hard Coat Anodized Weight:  7.2 oz. Compatibility: 9mm AR lowers