Military Dive Rebreathers MR9000 - Semi-Closed Mine Countermeasures (MCM) Diving Apparatus HomeSafety and SurvivalMilitary Dive RebreathersMR9000 - Semi-Closed Mine Countermeasures (MCM) Diving Apparatus The MR9000 Viper + is a self contained rebreathing apparatus developed specifically for underwater MCM throughout the entire water column. Home Capabilities Customers Suppliers Careers News About Military Dive Rebreathers Product Contacts USA Cobham Mission Systems, Davenport, USA 2734 Hickory Grove Road, Davenport, Iowa, USA 52804. Tel +1 563 383 6000 Fax +1 563 383 6430 Cobham Mission Systems Davenport LSS Inc. View location Contact office