I own two SR556's and was looking forward to owning more. But Ruger dropped the 6.8 SPC a few years ago and they have yet to release a dedicated 300 blackout AR rifle, other than the takedown optional barrel or the Mini offered in 300. And now it appears they may be abandoning their piston rifles for the more traditional, and cheaper to produce, gas impingement versions. Last January i was on the fence about purchasing an AR556. I would enjoy owning and shooting one, especially since it was lighter than my 556-E and capable of firing heavier rounds. But I kept reminding myself that it's just another M4 style AR15 with nothing special that sets it apart from all the others. Which is exactly why I bought the second SR, the VT version, instead of the AR556. If they are truly phasing out their piston AR's then i hope Ruger is currently working on other variations of their new DI rifle, including a longer barreled SPR type and possibly a 300 blackout. And maybe we'll finally get a 204 Ruger AR rifle from the company it's named after.