Does anyone know if s&w will sell the sport style forend to retrofit older 15-22's? I was wondering first if they even would sell it? (as they can be a bit odd on parts sales) and if it might be a good option vs the tacticool adapter & tools, then buying an aluminum hand-guard

No, they won't, at least for a while. There may be folks that want to swap but I haven't found any yet

Part # and or source for New 15-22 Sport Handguard

Guess you havent read other posts.
Helps to read first!

Missed it, thanks. I did a more involved search last weekend and figure I would finally post the question. Didnt see came up in the few days since I last looked.

I may be selling mine. We'll see how I like each, I bought the old school rail from a seller in the classifieds

I'd be interested in buying if you decide to sell.

What are inner dimensions for the new HG?

I'm curious if a MASK would fit in there.