CS 77 Bullet Proof

CS 77 Bullet Proof

Concept System 77 'Bulletproof' window

Optimised safety and comfort

Concept System® 77 “Bullet Proof” is an extension of CS 77 which enables the realisation of bulletproof windows and doors according to the most severe European standards.

Technical information


Min. Visible width frame-vent: inward opening128 mm 
Min. Visible width T-profile102 mm 
Max. height vent2000 mm 
Max. width vent1300 mm 
Overall system depth frame97 mm 
Overall system depth vent77 mm 
Rebate height25 mm 
Min. Glass thickness25 mm 
Max. Glass thickness52 mm 


Air tightness max. test pressure4 (600 Pa)
Water tightness9A (600 Pa)
Wind load resistanceC5 (2000 Pa)
Bullet resistance1
Thermal insulation (Uf)1,94 W/m²K

Opening elements

  • Fixed WindowFixed Window
  • Inward opening combined elementsInward opening combined elements
  • Inward Opening TiltInward Opening Tilt
  • Inward Opening Tilt TurnInward Opening Tilt Turn
  • Inward Opening TurnInward Opening Turn
  • Inward Opening Turn TiltInward Opening Turn Tilt