At what percentage of deformation in the bolt of the MK19 machine gun must it be replaced?

The MK19 machine gun requires the replacement of the bolt when it exhibits a deformation of 50 percent. This standard is critical because the integrity of the bolt is essential for the safe and effective functioning of the weapon. Deformation beyond this threshold could compromise the reliability of the firing mechanism and could lead to malfunctions or failures during operation.

Understanding the importance of maintaining the machine gun's components is vital for ensuring operational readiness and safety. Monitoring the condition of the bolt, alongside other parts of the weapon, allows for preventative maintenance that can mitigate the risks associated with firearm operation, providing safety for users and those around them.