How many different types of train stops are there available for M240 mounts?

For M240 mounts, there are typically three main types of train stops: fixed stops, adjustable stops, and removable stops. Fixed stops provide a set limit for the weapon's range of motion, while adjustable stops allow for some customization in positioning. Removable stops can be taken off or relocated as needed for different operational requirements. Each type serves to enhance the versatility and effectiveness of the M240 in various combat scenariOS.