SIMUNITION® CONVERSION KIT HK MP5 replaces the head of the bolt assembly and provides for the use of a decalibrator to be inserted inside the barrel, to enable EXCLUSIVELY the use of SIMUNITION® 9mm caliber FX® marking ammunition, SIMUNITION® 9mm caliber CQT® short range ammunition, SIMUNITION® 9mm caliber SecuriBlank® blank ammunition.
