Azraels AK74L - spring size question

Hi guys.
Got a AK74L on the way, but I would like to confirm what is the size of the gearbox spring that it comes installed with ?
I would be interested in changing the spring to a slightly less powerful one, to reduce the FPS, in order to improve the accuracy. I suspect as it is supplied, the accuracy is not that great. I do have some spare springs, but not any M rated ones.
Thanks !

mine came with an m110, swapped to an M90 tbh still punches just as hard from feel but chrono will probably disagree.
I still had accuracy issues until i put on a hopup, my guess is cylinder/barrel volume ratio is too high but havent checked, maybe @AzraelsArmoury could offer some more insight.