Well, this is my 223rd post, and as such, I thought I'd post a random thought I had while drinking a soda the other day...

Could AR-15 lowers be made of aluminum cans?

Yes, I realize there are some metalurgy and tooling processes that go into making a lower.  I just know I go through several pounds of aluminum every year.  This would be an environmentally friendly way of recycling[:D].

So, is it theoretically possible?

I don't see why not.  You would have to melt the cans down and get the pure alunimum out of them and then go from there.  I am sure that it is more of an alunimum alloy however.

If you do this using a mold from your current lower please let me know.

sgtar15

Not easily.

Aluminum cans are deep drawn, hence they use a very soft, workable aluminum.

The alloy would need to be reconfigured for a good receiver.

So then it may be difficult, but it is possible?