Gun Sighted can be obtained by having Billy the Kid reach Bond level 10.
Gun Sighted is Billy the Kid's max bond CE and an exclusive to Billy the Kid.
Rashoumon event (Ibaraki Douji event)
Murder at the Kogetsukan
Inheritance of Glory
FGO Reroll Tier List [5/11 updated!]
Sessyoin Kiara
1-3 Star Servants Tier List
Rashoumon Event Day 5 Guide: Raid Quest & Missions
Sasaki Kojirou
There is No Love Here
How to unlock/maxing Irisviel (FGO Fate/Accel Zero Order event)
Ereshkigal
Arthur Pendragon(Prototype)
Gorgon
Black Holy Grail (The Black Grail)