Survivability is improved in the addition of various modular armor defense schemes for each the M60's turret and hull. The updates include things like armor safety with STANAG 4569 Level 6 safety plates into the frontal arc, passive and reactive armor panels and side skirts and slat armor added on https://hoytmachineguns.com/product/sturmgewehr-stg44-7-92x33-kurz-transferable-machine-gun/