[Zack The Ripper]

I did a quick search and didn't see any posts relating to this. A Scarborough retailer I frequent recently got these A&K PTW M4A1s in stock. I have never seen these before, although I haven't been looking at rifles for some time now, just caught my eye when I visited this retailer's site recently. Has anybody ever used one of these before, or are these "fresh" to the market? What are your guys' thoughts on it? I am in no way interested in purchasing as I am already very well equipped, I'm just rather curious to see what the techies and vets think about it.

I didn't post the link as this isn't in the AV'ed section, so check it out for yourself.