Which statement is true regarding short-range MK19 requirements?

The statement regarding short-range MK19 requirements being greater than 65 meters is accurate. The MK19 grenade launcher is designed for a variety of ranges with specific operational purposes. For short-range engagements, the effective range can be less than standard medium-range requirements, and it's essential to recognize that the minimum effective range is set above 65 meters for safety and effectiveness in engagements.

In this context, the focus on a minimum greater than 65 meters ensures that the weapon operates effectively and remains within safety parameters when targeting around close-quarters scenarios. This information is essential for proper weapon handling, tactical planning, and ensuring the effective use of the MK19 in combat scenarios.

The other statements do not correctly represent the requirements established for short-range use of the MK19. For instance, exceeding 400 meters does not align with short-range definitions, nor do specific ranges such as 75m to 300m correctly describe the short-range capabilities. Additionally, setting a fixed range at 400m goes beyond what is applicable for short-range specifications, as these are typically much lower to accommodate different tactical situations.