Para Ordnance

I purchased a P12-45 about 4 months ago and just recently it has started throwing hot brass at my head every few rounds. I realize this is the extrator acting up and I saw during my use of the forum search that Para does have a new extration system. Does anyone know if PO is able to retrofit pre PXT stuff or am I doomed to have little circles on my forehead. I purchased it used from Gander mountain but am not sure if the warrently that i purchased with it will cover the extraction problem.