Madbull Airsoft sent to us an advisory that they have the JP rifles upper receiver in limited stock.  These are JP Rifles 100% CNC upper receiver. First version is designed for old version of CA with 2 pins on the receiver and will be released by March 2008. The receivers will surely give you AEG a nice look. If your receiver looks shabbily-made, you can just take it out and install this. Neat, ain't it?