M16A2 from insurgency sandstorm. Has a thirty round magazine and fire selector.
This is where the fire selector is.
If there are any bugs you come across, or if you have any mod development tips, please let me know on discord - cornhog#6479!
main base model and attachments where taken from insurgency sandstorm and tarkov
sounds taken from insurgency sandstorm and MW19
assembly and testing done by me