Just a quick heads up that I’ve got some surplus 180B parts in stock and ready to go.
Biggest and hardest to find parts are complete bolt carrier groups. I’ve been able to put together a few of these and I don’t know if I’ll ever be able to source all these parts again. By the way these can be machined to work in an original AR180 if needed. I don’t provide the service but any competent machinist or gunsmith can help you out.
Another item that has been asked about a lot are original extended length hammer and trigger pins. These are new old stock Armalite production, as are all these parts.
Take a look around and see if there is anything you might need to finish a build or to have spares.