Model Variants (Including Prototypes)
M.S.405 - Developmental Model; 2 prototypes and 16 pre-production models.
M.S.406 - Based on M.S.405 Development Model; decreased overall weight and redesigned wing structure; fitted with Hispano-Suiza HS 12Y-31 engines of 860 horsepower; 1 x 20mm cannon and 2 x 7.5mm machine guns.
M.S.410 - Improved M.S.406 Model Series; reinforced wing structure; 4 x machine guns; top speed increase; 5 examples completed.
M.S.411 - Single Production Example; fitted with wing system of M.S.406 model and Hispano-Suiza HS 12Y-45 series engine of 1,000 horsepower.
M.S.412 - Unfinished Model; fitted with Hispano-Suiza 12Y-51 series engine of 1,050 horsepower.
M.S.450 - Single Prototype Development; fitted with Hispano-Suiza 12Z engine of 1,300 horsepower.
M.S.430 - Two-Seat Trainer; fitted with Salmson 9 radial engine of 390 horsepower.
M.S.435 - Two-Seat Trainer; fitted with Gnome-Rhone 9K series engine of 550 horsepower.
EFW D-3800 - Swiss designation for license production M.S.406's; built from 2 received M.S.405 model series.
EFW D-3801 - Fitted with Swiss instruments, weaponry and propeller system.