Description Imperial Arms Cypher X “MULTI CAL” marked virgin stripped receiver. This receiver is compatible with the FN SCAR™ 16s and its parts, chambered in 5.56 NATO. Black, type III mil-spec anodized finish. Picatinny rail along the top of the receiver. Serialized part that must ship to FFL holder. Condition: New in box. Serial: CHXX88 Manufacturer: Imperial Arms Caliber: 5.56 NATO/.223 Remington Model: Cypher X / SCAR 16 Book# 8-814