The billet AR15.com lower is the first 45/90 degree selector compatible lower to be available
Norgon ambi mag release, right side bolt release, Geissele trigger, and our 45 degree selector (compatible with legacy 90 degree selector as well).
We've been working with ar15.com for a long time, though we make but one component in this project, judging by the time we spent collaborating with ar15.com, the numerous conference calls and emails, we know they spent at least this much time with other components as well. This is a no holds barred, no expense spared premium lower receiver.
We do not have pricing or availability info yet, a formal announcement will be made on ar15.com shortly