We have a different design, with a detent hole that has positive engagement with the detent to prevent rotation once the detent has popped into place.
I should mention that lately the past couple years some detents on Benelli M4s suffer from less than adequate spring pressure, and our handle can be rotated out with enough force. I have an older 2013 m4 where the detent has great pressure and I couldn’t rotate the handle with all my strength, my newer 2020 M4 has a detent that does not have the same detent pressure. At the same time I have a lot of customers with new M4s that the handle locks on great.
I am sure some users here will chime in.