The following weapons were used in the film Thirteen Days:
DShK (Mocked up Browning M2)
When US Navy planes fly a low level mission over Cuba, Cuban soldiers are seen firing a Browning M2 mocked up to resemble the DShK heavy machine gun from a guard tower. A Quad Mount fitted with four mock DShK's is also seen being fired.
Norinco Type 56
Cuban soldiers are also seen firing Norinco Type 56 rifles at the planes.
US Marines are seen at the beginning of the film armed with M14 Rifles when escorting U2 spy film to the Pentagon.
US Navy guards are seen with holstered M1911A1 pistols while escorting the film.
Smith & Wesson Model 10
Commander William B. Ecker (Christopher Lawford) is seen with what appears to be a Smith & Wesson Model 10 holstered while getting ready to fly the low level mission over Cuba.