Advice needed on how to best divest from 5.56

[Bountied]

Yo

I have 6 extra uppers if you include rimfire.
[EDIT] Actually, I have 8!

You need some lowers to give those uppers a proper home.

 

[mal316]

That doesn't mean you never will. It is your civic duty to keep an assault rifle at the ready. Hope you'll never need it.
(I have included a bit of sarcasm in this post, but am serious about the rifle)

Just saw this, and had to laugh.

 

[DocZ]

Re barrel it to 9mm