I read somewhere that there were different versions of the SAM2 (I think 3 or 4). Which one was used by North Vietnam in the Nam war? Is Trumpeter SAM2 correct for that version or what changes it needs to be done? What colours they were painted in use by North Vietnam? Did the launcher changed or there was only one without changes? In case the launcher evolved is the Trumpeter one correct for the Nam war or it needs changes? In case the launcher needs changes which changes it needs?

Thanks in advance.

i don't know on the technical details, but the NVA did use the SAM-2 in the vietnam war, and eventually upgraded to SAM-6 in the final stages of the conflict.