I posted this solution to the ARGO system years ago. Both a hand held tool and a Delrin slotted compression pin to release / install the ARGO pin secured in a vise.
The factory tool is does not seem to be as kind as the Delrin and polished hand held tool.
M4 is more robust. I have all 3, the berettas are a lot of plastic… M4 is heavier but can go through a battle field and still function if dropped, banged around, thrown around etc, to be honest I wouldn’t ever take a 1301 or a 300UP into a battle if the M4 was there as a choice.
the berettas shine in sport shooting. Pick your poison.