I have a plum set that is for a stamped receiver. All the parts are stamped with a white or silver stamp except the upper HG. The pistol grip is also stamped and is not US made. The lower HG has been fitted, but works on everything I tried it on. If you dont like the fact of it being fitting, I can give you another that does not have a stamp. I do not want to sell it!!! I would like a RUSSIAN AKS 74 rear folding trunnion and all peices for the front retainer. I have the stock, just need the hardware. Thanks!!!