We have been begging Sig to notify dealers and consumers when they make running changes to features on various firearms they offer. It can be confusing to track changes when dealing with large quantities of each model.
Someone must be listening because Sig recently notified us of a running design change to the P239 line. Effective 3/1/15 all P239 pistols that come with the black two piece grips will ship with the Hogue one piece wrap around grip.
It appears that this effects all P239 models with the exception of the Scorpion.