Ares honey badger:
Quick spring change system, sleek, compact, light, plenty of rail space for accessories, fast semi auto trigger response, m4 mags and gearbox so parts are easy to source.
Maybe slighter bigger than what you're after but a safe bet and will also suffice in woodland settings.
Had mine since they come out and not had a single issue.
You may have to pay slightly over your budget unless you go second hand.