DIY would depend on how mechanical minded a person is. I had 2 'gunsmiths' look at one of mine for 30 mins. & had no idea where to start to change the safety. One said put the trigger group in a zip lock bag, that spring looks like it has tension on it, don't want it to fly off & get lost.
BOB
agm65ccip, I've come to the conclusion, I've had 2 Vinci safeties changed from right to left. You can also send it back to Benelli & they will change it.
BOB