The official link for Modern Firearms v2.6.9 in Fallout 4 is currently hosted on the Bethesda.net Creations platform. This version is widely considered the "working" stable build for both PC and Xbox One players. Key Features of Version 2.6.9
Conclusion
Modern Firearms is widely considered one of the best weapon mods for Fallout 4. Unlike many mods that add a single weapon, Modern Firearms adds a comprehensive pack of assault rifles, sniper rifles, SMGs, and pistols. fallout 4 modern firearms 269 link
Tactical Customization: Features advanced modifications such as under-barrel shotguns, grenade launchers, suppressors, and deployable bipods. The official link for Modern Firearms v2