This is the KittyHawk 1/48 MiG-25PD/PDS (kit KH80119). The model is built mainly from the box with the only aftermarket addition being a Neomega resin cockpit and seat (originally designed for the Revell kit).
The exhaust nozzle required some scratch-built modifications to accurately represent the shorter nozzle used on the PD/PDS Interceptor variant. The base depicting 1950/1960 era Soviet hexagonal concrete sections is provided by scalemodelscenery.co.uk as a printable PDF file. The pilot figure is from Aero Line. The model was finished primarily with Gunze Mr Color paints and Alclad II metalisers.