Generate a correct and concise answer for the question based on the words in the context.
Q: Context : The DShK 1938 (, for - , Degtyaryova-Shpagina Krupnokaliberny, 'Degtyaryov-Shpagin Large-Calibre') is a Soviet heavy machine gun firing the 12.7108mm cartridge.
Question : In what year did DShK enter service?
A:
1938