Eureka Seven: AO
The following firearms were seen used in the anime Eureka Seven: AO, the sequel series to Eureka Seven
Smith & Wesson 5904
Truth used an Smith & Wesson 5904 handgun. Agent Nakumura and Gazelle are also see holding one.
Rebecka Hallström has a Glock 17 as her sidearm.
Elena Peoples and Fleur Blanc have a compact 1911 as their sidearm.
Colonel Endou used a short barrel Wildey Magnum as his sidearm in episode 13.
Christophe Blanc uses a chromed Desert Eagle to fight Truth.
US Forces are seen with the M4A1 as their standard rifle and Ivica Tanović uses one when he was with US military and picked up one in the present.
The FAMAS G2 is the standard rifles used by security forces of Generation Blu.
Howa Type 89
The Japanese military is seen using Howa Type 89 rifles including Colonel Endou when he was younger and when he attacked the Gekko-Go.
The US military attempted to combat the Secrets with AT4s.