I bid on a GunBroker auction that I didn't expect to win, but I did by $0.16. This is my first B&T firearm from their APC series. It's an APC9 Pro Limited Edition factory SBR. The lower receiver is aluminum, it has a special trigger of some sort, a special stock and came in a backpack. I already have plenty of magazines for my TP9-N, so the magazine interchangeability is a nice bonus. Now for the NFA jail wait.