This model is in 1/700 scale. The 4x Two Seat Versions of the A-10 Thunderbolt II attack aircraft are attached as a single sprue by a wire under the main body of the aircraft. Once cut the aircraft do not require any assembly. This version of the aircraft is unarmed.
According to Wikipedia: "One experimental two-seat A-10 Night Adverse Weather (N/AW) version was built by converting an A-10A. The N/AW was developed by Fairchild from the first Demonstration Testing and Evaluation (DT&E) A-10 for consideration by the USAF. It included a second seat for a weapons system officer responsible for electronic countermeasures (ECM), navigation and target acquisition. The N/AW version did not interest the USAF or export customers. The two-seat trainer version was ordered by the Air Force in 1981, but funding was canceled by U.S. Congress and the jet was not produced. The only two-seat A-10 built now resides at Edwards Air Force Base's Flight Test Center Museum."