The M1900BB (M1900) is a 18% M reloadable composite motor from AMW.
| Average Thrust: | 1,870.2400 N | 
| Certified By: | National Association of Rocketry | 
| Class: | 18% M | 
| Delays: | 1000 seconds | 
| Designation: | M1900BB | 
| Diameter: | 75.0000 mm | 
| Length: | 785.0000 mm | 
| Letter: | M | 
| Manufacturer: | AMW | 
| Name: | M1900 | 
| Peak Thrust: | 2,324.7000 N | 
| Propellant: | APCP | 
| Status: | Out-Of-Production | 
| Thrust Duration: | 3.2300 s | 
| Total Impulse: | 6040.8800 Ns | 
| Total Weight: | 5422.5000 g | 
| Type: | Reloadable | 
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