After the conclusion of the armistice between Finland and the USSR in September 1944, the guns were returned back to the USSR, where they became part of the 1st Guards Naval Railway Krasnoselsky Red Banner Artillery Brigade as a separate battery No294 in the city of Baltiysk. In 1961, the battery was disbanded, and the transporters left for the Lebyazheye railway storeroom, which is not far from Fort Krasnaya Gorka.
Now one transporter is in Moscow on Poklonnaya Gora, the second is in Steam Locomotive Museum near the Warsaw Railway Station in St. Petersburg, and the third is in the museum Fort Krasnaya Gorka.