Presented is a realistic M4/Mk.18 weapon model that is ready for use in your project. The weapon is rigged for animation, and includes some basic animations, such as Idle, Fire, Fire-to-Empty, ADS, Reload, Running, and Walking. Also included are animations for the UE5 Skeleton to go along with the weapon.
In this project are standard black textures, but also FDE textures that you can change if you would like.
You can download a demo of the animations for the arms and weapons here:
https://mega.nz/file/DcsVlIjL#wb3GkFivYuTYeqJO7BCGyi0iBBvTRyeT5NWhKYceo7g