Survivability is improved with the addition of assorted modular armor defense strategies for equally the M60's turret and hull. The upgrades involve armor defense with STANAG 4569 Degree six defense plates to the frontal arc, passive and reactive armor panels and facet skirts and slat armor additional towards the bustle, https://hoytmachineguns.com/product/springfield-sar-48-308-win-paratrooper-factory-transferable-machine-gun/