Well vmaxphil it was something to do with the gas vents, took apart the gas piston bits by looking on the net on how to do it and got a chainsaw file and bent the end so to poke it into the gas holes, they didn't seem to be blocked but some stuff came out.
I've replaced all the mainsprings firing pin and had it all apart and sorted all manner of
problems. I would say to any one buy a new auto just take the standard warranty and just get the parts direct from beretta as it only take 2 days for them to arrive.
So save yourself fuel cost going to a gun dealer and the time it takes for them to send the broken part to beretta to ***** to see if it is under an extended warranty or just over use or miss use.