BUR #13918 has been approved by @nonamethanks.
Quoting the Wikipedia page:
The official designation 7,62-мм ручной пулемет обр. 1927 г (7.62mm Hand-Held Machine Gun Model 1927). It was called the ДП-27 (DP-27) or just DP in use, besides the aforementioned soldier slang name of "Record Player" due to the disc-shaped magazine.
For reasons that are unclear, it is often called the DP-28 in the west, even though no Soviet sources ever used that designation. It is possible, since the Soviets generally named equipment referring to the first year of use, that western sources became confused between the initial service testing date of 1927 and the general service distribution date of 1928 and assumed it would be called the DP-28.
The weapon was accepted into Soviet Army service in 1927.
Even the Wikia page for character Tachanka also said that his signature weapon is the DP-27.
Thank you for reading this suggestion. I think using the more "official" designated name of certain firearm must be a more better idea.
For instance, this site uses the actual name AKS-74U to describe the shortened variant of AK-74, instead of using the inaccurate terms like AK-74U or "Krinkov".
Updated