...shows character Nick Fury using (presumably) a Crosman 2240 with a red-dot sight. I noticed this yesterday when seeing in the theater. I suppose it is plausible as he used it as a close-range tranquilizer gun. http://www.imfdb.org/wiki/Spider-Man:_Far_From_Home#Crosman_2240_CO2_Pistol
Power adjuster as well, cool!