Is there any way currently via compliance parts to meet 922r and have both the collapsible stock and 7+1 tube? I suspect a lot of people will be getting collapsible stocks soon as the pricing, while still outrageous, is lower than the GB $600-650 prices everyone had grown accustomed to - I purchased mine from eBay yesterday. I know that replacing tube, follower, and forearm is not enough - would Kip's newest muzzle brake accessory be the last necessary part?