The series is set in the mid-1980s but all the $20 and $100 dollar bills shown were introduced in the 2000s.
Several of the rifles used by the cartel members on this series are M4 carbines (the current version of the US military m16 rifle). The M4 carbine was not in use until 1994, the year after Escobar's death.
Furthemore, many of the military and cartel's guns in this series feature "picatinny rails" to mount accessories, such as flashlights, scopes, and laser aiming devices. This rail system was also not adopted until the mid '90s, and even then, not in full military use until years after Escobar was killed.
Finally, in several scenes the weapons are equipped with modern lighting systems and "quad rails," which were not developed until long after this story takes place.
The M16a1 and a2 rifles shown being used by the militants and police in this series are interspersed with the weapons mentioned above. Likely, the producers relied on whatever props they could acquire, and importing older, a1/a2 weapons was very cost prohibitive.
Furthemore, many of the military and cartel's guns in this series feature "picatinny rails" to mount accessories, such as flashlights, scopes, and laser aiming devices. This rail system was also not adopted until the mid '90s, and even then, not in full military use until years after Escobar was killed.
Finally, in several scenes the weapons are equipped with modern lighting systems and "quad rails," which were not developed until long after this story takes place.
The M16a1 and a2 rifles shown being used by the militants and police in this series are interspersed with the weapons mentioned above. Likely, the producers relied on whatever props they could acquire, and importing older, a1/a2 weapons was very cost prohibitive.