What is the total weight of the Mk-19 including the gun, Mk93 mount, and M3 tripod?

The total weight of the Mk-19 system, which includes the gun, Mk93 mount, and M3 tripod, is indeed 149.6 lbs. This weight encompasses the complete setup needed for the operation of the Mk-19 grenade launcher. Understanding the weight is crucial for logistics, transportation, and operational planning. The Mk-19's weight also affects how it can be deployed and the types of vehicles or aircraft needed to carry it into combat.

Knowing the total weight helps Marines assess the feasibility of maneuvers, how to position the weapon system effectively on the battlefield, and ensures that they are equipped with the right level of support for carrying and deploying the Mk-19 during missions. The other options significantly underestimate the weight of the full system, leading to unrealistic expectations regarding handling and transport capabilities.