Assa 700 (made by Tarehjerne)
Emhart (made by opensourcefan)
Evva 3KS (factory cutaway)
Evva 4KS (factory cutaway)
Evva EPS (factory cutaway)
Evva FPS (factory cutaway)
Evva ICS (factory cutaway)
Evva MCS (factory cutaway)
Fichet 787 (factory cutaway)
Fichet F3D (made by Tarehjerne)
IZIS (made by Tarehjerne)
JPM Surf (made by Tarehjerne)
Medeco Biaxial (made by opensourcefan)
Urban Alps' StealthKey, factory cutaway
Those cutaways are either official factory cutaways, or were made by other people.