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25mm Barrel Insert System (BIS)




  • Designed for firing 25mm TPDS-T modified M910 or HEI-T modified M792 cartridge

  • Identical aiming and firing procedures as the full-bore tank cartridge

  • No tank modifications needed

  • Automatic Breech Opening Devic (after firing) 

  • Type classified and in use by several armed forces using the Leopard 2 MBT



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