I just bought a big clothes dryer sized box about 2/3 full of m16 and a few other parts from a guy who lost his job.
I probably overpaid but got a number of boc, milpar, imperial,colt bayos, armalite waffle mags, no trapdoor stocks, barrels and handguards and grips for a1's. A small number of a1 uppers some really early ones. I'm wondering though are these the so called seatbelt slings? I got one to clean up good haven't done anything with the rest. They nearly all have powdery white stuff on the buckles but it mostly brushed off the green hued metal parts. I also am wondering is the upper shown early? There is no forge flashing on front or back of front sight.
The guy I got the stuff from converted a bunch of parts m16 parts kits to flat top m4's and he said this was the extra stuff he chucked in a box in his shop.