Just recently saw this out there for the standard AR-15: AR Folding Stock Adapter

Just wondering if anyone is interested in it for the 15-22? Obviously it wouldn't need to have the specialty parts to keep the bolt in place when folded, but that would make this quite a bit easier (I think). I know in the past there was interest in people wanting an adapter to be able to use a standard buffer tube, so this could fit that role as well. I would definitely require some modification to the original 15-22 though.