I run a small mech eng company, and have been approached by a customer whom has design he wishes to have made. He wants as many actual genuine M4/Ar components where possible, most of which he has already provided. Tbh I have no insider information on which currently produced Airsoft rifles would prove viable upper and lower donors, and I was hoping someone could hopefully give a few ideas. The design provided fits inside the dimensions of the origin rifles ok, with the receivers basically being only cosmetic, not load bearing. Hence I originally downloaded the dimensions of the firearms upper and lower receivers, and was going to fabricate items , but if existing models could yield receivers , it'd certainly be worth investigating, given they're only going to be cosmetic covers.
Thanks N .Blackman .