Before today's patch, the tier 10 Agent Contract pistols all used the same default buddy mount (orange ring). With the patch, each Agent pistol's buddy mount was updated to reflect their color schemes. Personally, the default orange annoyed me to the point where I took off my buddies on my Agent pistols but now I can put them back!
For example, Viper's Shorty has a green ring mount and Omen's Ghost has a blue ring mount.
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