IO Inc., best known for their AK rifles, will soon be selling M16A1 rifles made from original Colt M16A1 parts. The only non-Colt parts will be the IO-manufactured semi-automatic lower receiver and the barrel. The upper receiver, sights and furniture are authentic Colt M16A1 parts. The rifle does not have a MSRP yet. The company is aiming to price it at around $800.
The M16A1 was replaced with the M16A2 in the early 1970s. I would love to know where in the world IO found a stash of ancient Colt parts.