I did a partial on mine. Tapco G2 single-hook set, original FEG stock and pistol grip, USA-made mag and threaded barrel plus installation of a plunger and spring in the sight base. If you decide to 'go all the way' and do the gas block and sight base, it doesn't add to the imported parts because they are not on the list. I've bought several original FEG pistol grips and they all came with the steel cap. You'll need the threaded 'nut' that fits into the receiver and the correct-length grip screw to install the grip. The FEG buttstocks have become scarce now but the blonde Bulgarian stock with the 'slot' on the sides matches well. Or, you can use an 'Ironwood' stock which does save you a part. There are better USA mags available now so I would never replace an original gas piston just to use an imported mag. You can save more parts by using more USA-made wood on it, but since I got lucky and found a new original stock for sale it was worth it to me to have original wood.