title: CN 90 F4
text: # CN 90 F4
  
  The CN 90 F4 (French: CanoN de 90 millimètres Modèle F4; English: 90 millimeters gun F4 Model) also marketed under the name of Super 90 is a French rifled 90 mm tank gun produced by Giat Industries .
  
  ## Additional specifications
  
  * Overall length: 5.74 m
  * Barrel length: 4.68 m
  * Rifling length: 4.022 m
  * Rifling twist: 25°
  * Number of grooves: 60
  * Muzzle brake: single baffle
  * Maximum recoil length: 550 mm
  * Maximum service chamber pressure: 210 MPa
  * Overall weight: 602 kg (with armored gun shield)
  * Recoiling gun mass: 422 kg
  
  ### Current operators
  
  * Ivory Coast
  * Nigeria
  * Gabon
  * Oman
  